English contract law
English contract law is a body of law regulating contracts in England and Wales. With its roots in the lex mercatoria and the activism of the judiciary during the industrial revolution, it shares a heritage with countries across the Commonwealth (such as Australia, Canada, India), and the United States. It is also experiencing gradual change because of the UK's membership of the European Union and international organisations like Unidroit. Any agreement that is enforceable in court is a contract. Because a contract is a voluntary obligation, in contrast to paying compensation for a tort and restitution to reverse unjust enrichment, English law places a high value on ensuring people have truly consented to the deals that bind them in court. Generally a contract forms when one person makes an offer, and another person accepts it by communicating their assent or performing the offer's terms. If the terms are certain, and the parties can be presumed from their behaviour to have intended that the terms are binding, generally the agreement is enforceable. Some contracts, particularly for large transactions such as a sale of land, also require the formalities of signatures and witnesses and English law goes further than other European countries by requiring all parties bring something of value, known as "consideration", to a bargain as a precondition to enforce it. Contracts can be made personally or through an agent acting on behalf of a principal, if the agent acts within what a reasonable person would think they have the authority to do. In principle, English law grants people broad freedom to agree the content of a deal. Terms in an agreement are incorporated through express promises, by reference to other terms or potentially through a course of dealing between two parties. Those terms are interpreted by the courts to seek out the true intention of the parties, from the perspective of an objective observer, in the context of their bargaining environment. Where there is a gap, courts typically imply terms to fill the spaces, but also through the 20th century both the judiciary and legislature have intervened more and more to strike out surprising and unfair terms, particularly in favour of consumers, employees or tenants with weaker bargaining power.
Contract law works best when an agreement is performed, and recourse to the courts is never needed because each party knows her rights and duties. However, where an unforeseen event renders an agreement very hard, or even impossible to perform, the courts typically will construe the parties to want to have released themselves from their obligations. It may also be that one party simply breaches a contract's terms. If a contract is not substantially performed, then the innocent party is entitled to cease her own performance and sue for damages to put her in the position as if the contract were performed. She is under a duty to mitigate her losses and cannot claim for harm that was a remote consequence of the contractual breach, but remedies in English law are footed on the principle that full compensation for all losses, pecuniary or not, should be made good. In exceptional circumstances, the law goes further to require a wrongdoer to make restitution for their gains from breaching a contract, and may demand specific performance of the agreement rather than monetary compensation. It is also possible that a contract becomes voidable, because, depending on the specific type of contract, one party failed to make adequate disclosure or they made misrepresentations during negotiations. Unconscionable agreements can be escaped where a person was under duress or undue influence or their vulnerability was being exploited when they ostensibly agreed to a deal. Children, mentally incapacitated people and companies, whose representatives are acting wholly outside their authority, are protected against having agreements enforced against them where they lacked the real capacity to make a decision to enter an agreement. Some transactions are considered illegal, and are not enforced by courts because of a statute or on grounds of public policy. In theory, English law attempts to adhere to a principle that people should only be bound when they have given their informed and true consent to a contract.
- 1 History
- 2 Formation
- 3 Construction
- 4 Conclusion and remedies
- 5 Cancelling the contract
- 6 Theory
- 7 See also
- 8 Notes
- 9 References
- 10 External links
The modern law of contract is primarily a creature of the industrial revolution and the social legislation of the 20th century. However, the foundations of all European contract law are traceable to obligations in Ancient Athenian and Roman law, while the formal development of English law began after the Norman Conquest of 1066. William the Conqueror created a common law across England, but throughout the middle ages the court system was minimal. Access to the courts, in what are now considered contractual disputes, was consciously restricted to a privileged few through onerous requirements of pleading, formalities and court fees. In the local and manorial courts, according to English law's first treatise by Ranulf de Glanville in 1188, if people disputed the payment of a debt they, and witnesses, would attend court and swear oaths (called a wager of law). They risked perjury if they lost the case, and so this was strong encouragement to resolve disputes elsewhere. The royal courts, fixed to meet in London by the Magna Carta 1215, accepted claims for "trespass on the case" (more like a tort today) was alleged. A jury would be called, and no wager of law was needed, but some breach of the King's peace had to be alleged. Gradually, the courts allowed claims where there had been no real trouble, no tort with "force of arms" (vi et armis), but it was still necessary to put this in the pleading. For instance, in 1317 one Simon de Rattlesdene alleged he was sold a tun of wine that was contaminated with salt water and, quite fictitiously, this was said to be done "with force and arms, namely with swords and bows and arrows". The Court of Chancery and the King's Bench slowly started to allow claims without the fictitious allegation of force and arms from around 1350. An action for simple breach of a covenant (a solemn promise) had required production of formal proof of the agreement with a seal. However, in The Humber Ferryman’s case a claim was allowed, without any documentary evidence, against a ferryman who dropped a horse overboard that he was contracted to carry across the River Humber. Despite this liberalisation, in the 1200s a threshold of 40 shillings for a dispute's value had been created. Though its importance tapered away with inflation over the years, it foreclosed court access to most people. Moreover, freedom to contract was firmly suppressed among the peasantry. After the Black Death, the Statute of Labourers 1351 prevented any increase in workers' wages fuelling, among other things, the Peasants' Revolt of 1381.
Increasingly, the English law on contractual bargains was affected by its trading relations with northern Europe, particularly since the Magna Carta 1215 had guaranteed merchants "safe and secure" exit and entry to England "for buying and selling by the ancient rights and customs, quit from all evil tolls". In 1266 King Henry III had granted the Hanseatic League a charter to trade in England. The "Easterlings" who came by boats brought goods and money that the English called "Sterling", and standard rules for commerce that formed a lex mercatoria, the laws of the merchants. Merchant custom was most influential in the coastal trading ports like London, Boston, Hull and King's Lynn. And with the courts' hostility to restraints on trade, a doctrine of consideration was forming, so that to enforce any obligation something of value needed to be conveyed. Some courts remained sceptical that damages might be awarded purely for a broken agreement (that was not a sealed covenant). Other disputes allowed a remedy. In Shepton v Dogge a defendant had agreed in London, where the City courts' custom was to allow claims without covenants under seal, to sell 28 acres of land in Hoxton. Although the house itself was outside London at the time, in Middlesex, a remedy was awarded for deceit, but essentially based on a failure to convey the land. The resolution of these restrictions came shortly after 1585, when a new Court of Exchequer Chamber was established to hear common law appeals. In 1602, in Slade v Morley, a grain merchant named Slade claimed that Morley had agreed to buy wheat and rye for £16, but then had backed out. Actions for debt were in the jurisdiction of the Court of Common Pleas, which had required both (1) proof of a debt, and (2) a subsequent promise to repay the debt, so that a finding of deceit (for non-payment) could be made against a defendant. But if a claimant wanted to simply demand payment of the contractual debt (rather than a subsequent promise to pay) he could have to risk a wager of law. The judges of the Court of the King's Bench was prepared to allow "assumpsit" actions (for obligations being assumed) simply from proof of the original agreement. With a majority in the Exchquer Chamber, after six years Lord Popham CJ held that "every contract importeth in itself an Assumpsit". Around the same time the Common Pleas indicated a different limit for contract enforcement in Bret v JS, that "natural affection of itself is not a sufficient consideration to ground an assumpsit" and there had to be some "express quid pro quo". Now that wager of law, and sealed covenants were essentially unnecessary, the Statute of Frauds 1677 codified the contract types that were thought should still require some form. Over the late 17th and 18th centuries Sir John Holt, and then Lord Mansfield actively incorporated the principles of international trade law and custom into English common law as they saw it: principles of commercial certainty, good faith, fair dealing, and the enforceability of seriously intended promises. As Lord Mansfield held, "Mercantile law is not the law of a particular country but the law of all nations", and "the law of merchants and the law of the land is the same".
Over the industrial revolution, English courts became more and more wedded to the concept of "freedom of contract". It was partly a sign of progress, as the vestiges of feudal and mercantile restrictions on workers and businesses were lifted, a move of people (at least in theory) from "status to contract". On the other hand, a preference for laissez faire thought concealed the inequality of bargaining power in multiple contracts, particularly for employment, consumer goods and services, and tenancies. At the centre of the general law of contracts, captured in nursery rhymes like Robert Browning's Pied Piper of Hamelin in 1842, was the fabled notion that if people had promised something "let us keep our promise". But then, the law purported to cover every form of agreement, as if everybody had the same degree of free will to promise what they wanted. Though many of the most influential liberal thinkers, especially John Stuart Mill, believed in multiple exceptions to the rule that laissez faire was the best policy, the courts were suspicious of interfering in agreements, whoever the parties were. In Printing and Numerical Registering Co v Sampson Sir George Jessel MR proclaimed it a "public policy" that "contracts when entered into freely and voluntarily shall be held sacred and shall be enforced by Courts of justice." The same year, the Judicature Act 1875 merged the Courts of Chancery and common law, with equitable principles (such as estoppel, undue influence, rescission for misrepresentation and fiduciary duties or disclosure requirements in some transactions) always taking precedence. But the essential principles of English contract law remained stable and familiar, as an offer for certain terms, mirrored by an acceptance, supported by consideration, and free from duress, undue influence or misrepresentation, would generally be enforceable. The rules were codified and exported across the British Empire, as for example in the Indian Contract Act 1872. Further requirements of fairness in exchanges between unequal parties, or general obligations of good faith and disclosure were said to be unwarranted because it was urged by the courts that liabilities "are not to be forced upon people behind their backs". Parliamentary legislation, outside general codifications of commercial law like the Sale of Goods Act 1893, similarly left people to the harsh realities of the market and "freedom of contract". This only changed when the property qualifications to vote for Members of Parliament were reduced and eliminated, as the United Kingdom slowly became more democratic.
Over the 20th century, legislation and changes in court attitudes effected a wide-ranging reform of 19th century contract law. First, specific types of non-commercial contract were given special protection where "freedom of contract" appeared far more on the side of large businesses. Consumer contracts came to be regarded as "contracts of adhesion" where there was no real negotiation and most people were given "take it or leave it" terms. The courts began by requiring entirely clear information before onerous clauses could be enforced, the Misrepresentation Act 1967 switched the burden of proof onto business to show misleading statements were not negligent, and the Unfair Contract Terms Act 1977 created the jurisdiction to scrap contract terms that were "unreasonable", considering the bargaining power of the parties. Collective bargaining by trade unions and a growing number of employment rights carried the employment contract into an autonomous field of labour law where workers had rights, like a minimum wage, fairness in dismissal, the right to join a union and take collective action, and these could not be given up in a contract with an employer. Private housing was subject to basic terms, such as the right to repairs, and restrictions on unfair rent increases, though many protections were abolished during the 1980s. Nevertheless, the scope of the general law of contract had been reduced. It meant that most contracts made by people on an ordinary day were shielded from the power of corporations to impose whatever terms they chose in selling goods and services, at work, and in people's home. Nevertheless, classical contract law remained at the foundation of those specific contracts, unless particular rights were given by the courts or Parliament. Internationally, the UK had joined the European Union, which aimed to harmonise significant parts of consumer and employment law across member states. Moreover, with increasing openness of markets commercial contract law was receiving principles from abroad. Both the Principles of European Contract Law, the UNIDROIT Principles of International Commercial Contracts, and the practice of international commercial arbitration was reshaping thinking about English contract principles in an increasingly globalised economy.
In its essence a contract is an agreement which the law recognises as giving rise to enforceable obligations. As opposed to tort and unjust enrichment, contract is typically viewed as the part of the law of obligations which deals with voluntary undertakings, and accordingly gives a high priority to ensuring that only bargains to which people have given their true consent will be enforced by the courts. While it is not always clear when people have truly agreed in a subjective sense, English law takes the view that when one person objectively manifests their consent to a bargain, they will be bound. However, not all agreements, even if they are relatively certain in subject matter, are considered enforceable. There is a rebuttable presumption that people do not wish to later have legal enforcement of agreements made socially or domestically. The general rule is that contracts require no prescribed form, such as being in writing, except where statute requires it, usually for large deals like the sale of land. In addition and in contrast to civil law systems, English common law carried a general requirement that all parties, in order to have standing to enforce an agreement, must have brought something of value, or "consideration" to the bargain. This old rule is full of exceptions, particularly where people wished to vary their agreements, through case law and the equitable doctrine of promissory estoppel. Moreover statutory reform in the Contracts (Rights of Third Parties) Act 1999 allows third parties to enforce the benefit of an agreement that they had not necessarily paid for so long as the original parties to a contract consented to them being able to do so.
The formal approach of English courts is that agreement exists when an offer is mirrored by an unequivocal acceptance of the terms on offer. Whether an offer has been made, or it has been accepted, is an issue courts determine by asking what a reasonable person would have thought was intended. Offers are distinguished from "invitations to treat" (or an invitatio ad offerendum, the invitation of an offer) which cannot be simply accepted by the other party. Traditionally, English law has viewed the display of goods in a shop, even with a price tag, as an invitation to treat, so that when a customer takes the product to the till it is she who is making the offer, and the shopkeeper may refuse to sell. Similarly, and as a very general rule, an advertisement, the invitation to make a bid at an auction with a reserve price, or the invitation to submit a tender bid are not considered offers. On the other hand, a person inviting tenders may fall under a duty to consider the submissions if they arrive before the deadline, so the bidder (even though there is no contract) could sue for damages if his bid is never considered. An auctioneer who publicises an auction as being without a reserve price falls under a duty to accept the highest bid. An automated vending machine constitutes a standing offer, and a court may construe an advertisement, or something on display like a deckchair, to be a serious offer if a customer would be led to believe they were accepting its terms by performing an action. Statute imposes criminal penalties for businesses that engage in misleading advertising, or not selling products at the prices they display in store, or unlawfully discriminating against customers on grounds of race, gender, sexuality, disability, belief or age. The Principles of European Contract Law article 2:201 suggests that most EU member states count a proposal to supply any good or service by a professional as an offer.
Once an offer is made, the general rule is the offeree must communicate her acceptance in order to have a binding agreement. Notification of acceptance must actually reach a point where the offeror could reasonably be expected to know, although if the recipient is at fault, for instance, by not putting enough ink in their fax machine for a message arriving in office hours to be printed, the recipient will still be bound. This goes for all methods of communication, whether oral, by phone, through telex, fax or email, except for the post. Acceptance by letter takes place when the letter is put in the postbox. The postal exception is a product of history, and does not exist in most countries. It only exists in English law so long as it is reasonable to use the post for a reply (e.g. not in response to an email), and its operation would not create manifest inconvenience and absurdity (e.g. the letter goes missing). In all cases it is possible for the negotiating parties to stipulate a prescribed mode of acceptance. It is not possible for an offeror to impose an obligation on the offeree to reject the offer without her consent. However, it is clear that people can accept through silence, firstly, by demonstrating through their conduct that they accept. In Brogden v Metropolitan Railway Company, although the Metropolitan Railway Company had never returned a letter from Mr Brogden formalising a long term supply arrangement for Mr Brogden's coal, they had conducted themselves for two years as if it were in effect, and Mr Brogden was bound. Secondly, the offeror may waive the need for communication of acceptance, either expressly, or implicitly, as in Carlill v Carbolic Smoke Ball Company. Here a quack medicine company advertised its "smoke ball", stating that if a customer found it did not cure them of the flu after using it thrice daily for two weeks, they would get £100. After noting the advertisement was serious enough to be an offer, not mere puff or an invitation to treat, the Court of Appeal held the accepting party only needed to use the smokeball as prescribed to get the £100. Although the general rule was to require communication of acceptance, the advertisement had tacitly waived the need for Mrs Carlill, or anyone else, to report her acceptance first. In other cases, such as where a reward is advertised for information, the only requirement of the English courts appears to be knowledge of the offer. Where someone makes such a unilateral offer, they fall under a duty to not revoke it once someone has begun to act on the offer. Otherwise an offer may always be revoked before it is accepted. The general rule is that revocation must be communicated, even if by post, although if the offerree hears about the withdrawal from a third party, this is as good as a withdrawal from the offeror himself. Finally, an offer can be "killed off" if, rather than a mere inquiry for information, someone makes a counter offer. So in Hyde v Wrench, when Wrench offered to sell his farm for £1000, and Hyde replied that he would buy it for £950 and Wrench refused, Hyde could not then change his mind and accept the original £1000 offer.
While the model of an offer mirroring acceptance makes sense to analyse almost all agreements, it does not fit in some cases. In The Satanita the rules of a yacht race stipulated that the yachtsmen would be liable, beyond limits set in statute, to pay for all damage to other boats. The Court of Appeal held that there was a contract to pay arising from the rules of the competition between The Satanita's owner and the owner of Valkyrie II, which he sank, even though there was no clear offer mirrored by a clear acceptance between the parties at any point. Along with a number of other critics, in a series of cases Lord Denning MR proposed that English law ought to abandon its rigid attachment to offer and acceptance in favour of a broader rule, that the parties need to be in substantial agreement on the material points in the contract. In Butler Machine Tool Co Ltd v Ex-Cell-O Corp Ltd this would have meant that during a "battle of forms" two parties were construed as having material agreement on the buyer's standard terms, and excluding a price variation clause, although the other court members reached the same view on ordinary analysis. In Gibson v Manchester CC he would have come to a different result to the House of Lords, by allowing Mr Gibson to buy his house from the council, even though the council's letter stated it "should not be regarded as a firm offer". This approach would potentially give greater discretion to a court to do what appears appropriate at the time, without being tied to what the parties may have subjectively intended, particularly where those intentions obviously conflicted.
In a number of instances, the courts avoid enforcement of contracts where, although there is a formal offer and acceptance, little objective agreement exists otherwise. In Hartog v Colin & Shields, where the seller of some Argentine hare skins quoted his prices far below what previous negotiations had suggested, the buyer could not enforce the agreement because any reasonable person would have known the offer was not serious, but a mistake. Moreover, if two parties think they reach an agreement, but their offer and acceptance concerns two entirely different things, the court will not enforce a contract. In Raffles v Wichelhaus, Raffles thought he was selling cotton aboard one ship called The Peerless, which would arrive from Bombay in Liverpool in December, but Wichelhaus thought he was buying cotton aboard another ship called The Peerless that would arrive in September. The court held there was never consensus ad idem (Latin: "agreement to the [same] thing"). Where agreements totally fail, but one party has performed work at another's request, relying on the idea that there will be a contract, that party may make a claim for the value of the work done, or quantum meruit. Such a restitution claim allows recovery for the expense the claimant goes to, but will not cover her expectation of potential profits, because there is no agreement to be enforced.
Certainty and enforceability
While agreement is the basis for all contracts, not all agreements are enforceable. A preliminary question is whether the contract is reasonably certain in its essential terms, or essentialia negotii, such as price, subject matter and the identity of the parties. Generally the courts endeavour to "make the agreement work", so in Hillas & Co Ltd v Arcos Ltd, the House of Lords held that an option to buy softwood of "fair specification" was sufficiently certain to be enforced, when read in the context of previous agreements between the parties. However the courts do not wish to "make contracts for people", and so in Scammell and Nephew Ltd v Ouston, a clause stipulating the price of buying a new van as "on hire purchase terms" for two years was held unenforceable because there was no objective standard by which the court could know what price was intended or what a reasonable price might be. Similarly, in Baird Textile Holdings Ltd v M&S plc the Court of Appeal held that because the price and quantity to buy would be uncertain, in part, no term could be implied for M&S to give reasonable notice before terminating its purchasing agreement. Controversially, the House of Lords extended this idea by holding an agreement to negotiate towards a future contract in good faith is insufficiently certain to be enforceable.
While many agreements can be certain, it is by no means certain that in the case of social and domestic affairs people want their agreements to be legally binding. In Balfour v Balfour Atkin LJ held that Mr Balfour's agreement to pay his wife £30 a month while he worked in Ceylon should be presumed unenforceable, because people do not generally intend such promises in the social sphere to create legal consequences. Similarly, an agreement between friends at a pub, or a daughter and her mother will fall into this sphere, but not a couple who are on the verge of separation, and not friends engaged in big transactions, particularly where one side relies heavily to their detriment on the assurances of the other. This presumption of unenforceability can always be rebutted by express agreement otherwise, for instance by writing the deal down. By contrast, agreements made among businesses are almost conclusively presumed to be enforceable. But again, express words, such as "This arrangement... shall not be subject to legal jurisdiction in the law courts" will be respected. In one situation, statute presumes that collective agreements between a trade union and an employer are not intended to create legal relations, ostensibly to keep excessive litigation away from UK labour law.
In a limited number of cases, an agreement will be unenforceable unless it meets a certain form prescribed by statute. While contracts can be generally made without formality, some transactions are thought to require form either because it makes a person think carefully before they bind themselves to an agreement, or merely that it serves as clear evidence. This goes typically for large engagements, including the sale of land, a lease of property over three years, a consumer credit agreement, and a bill of exchange. A contract for guarantee must also, at some stage, be evidenced in writing. Finally, English law takes the approach that a gratuitous promise, as a matter of contract law, is not legally binding. While a gift that is delivered will transfer property irrevocably, and while someone may always bind themselves to a promise without anything in return to deliver a thing in future if they sign a deed that is witnessed, a simple promise to do something in future can be revoked. This result is reached, with some complexity, through a peculiarity of English law called the doctrine of consideration.
Consideration and estoppel
Consideration is an additional requirement in English law before a contract is enforceable. A person wishing to enforce an agreement must show that they have brought something to the bargain which has "something of value in the eyes of the law", either by conferring a benefit on another person or incurring a detriment at their request. In practice this means not simple gratitude or love, not things already done in the past, and not promising to perform a pre-existing duty unless performance takes place for a third party. Metaphorically, consideration is "the price for which the promise is bought". It is contentious in the sense that it gives rise to a level of complexity that legal systems which do not take their heritage from English law simply do not have. In reality the doctrine of consideration operates in a very small scope, and creates few difficulties in commercial practice. After reform in the United States, especially the Restatement of Contracts §90 which allows all promises to bind if it would otherwise lead to "injustice", a report in 1937 by the Law Revision Committee, Statute of Frauds and the Doctrine of Consideration, proposed that promises in writing, for past consideration, for part payments of debt, promising to perform pre-existing obligations, promising to keep an offer open, and promises that another relies on to their detriment should all be binding. The report was never enacted in legislation, but almost all of its recommendations have been put into effect through case law since, albeit with difficulty.
When a contract is formed, good consideration is needed, and so a gratuitous promise is not binding. That said, while consideration must be of sufficient value in the law's eyes, it need not reflect an adequate price. Proverbially, one may sell a house for as little as a peppercorn, even if the seller "does not like pepper and will throw away the corn." This means the courts do not generally enquire into the fairness of the exchange, unless there is statutory regulation or (in specific contexts such as for consumers, employment, or tenancies) there are two parties of unequal bargaining power. Another difficulty is that consideration for a deal was said not to exist if the thing given was an act done before the promise, such as promising to pay off a loan for money already used to educate a girl. In this situation the courts have long shown themselves willing to hold that the thing done was implicitly relying on the expectation of a reward. More significant problems arise where parties to a contract wish to vary its terms. The old rule, predating the development of the protections in the law of economic duress, was that if one side merely promises to perform a duty which she had already undertaken in return for a higher price, there is no contract. However in the leading case of Williams v Roffey Bros & Nicholls (Contractors) Ltd, the Court of Appeal held that it would be more ready to construe someone performing essentially what they were bound to do before as giving consideration for the new deal if they conferred a "practical benefit" on the other side. So, when Williams, a carpenter, was promised by Roffey Bros, the builders, more money to complete work on time, it was held that because Roffey Bros would avoid having to pay a penalty clause for late completion of its own contract, would potentially avoid the expense of litigation and had a slightly more sensible mechanism for payments, these were enough. Speaking of consideration, Russell LJ stated that, "courts nowadays should be more ready to find its existence... where the bargaining powers are not unequal and where the finding of consideration reflects the true intention of the parties." In other words, in the context of contractual variations, the definition of consideration has been watered down. However, in one situation the "practical benefit" analysis cannot be invoked, namely where the agreed variation is to reduce debt repayments. In Foakes v Beer, the House of Lords held that even though Mrs Beer promised Mr Foakes he could pay back £2090 19s by instalment and without interest, she could subsequently change her mind and demand the whole sum. Despite Lord Blackburn registering a note of dissent in that case and other doubts, the Court of Appeal held in Re Selectmove Ltd, that it was bound by the precedent of the Lords and could not deploy the "practical benefit" reasoning of Williams for any debt repayment cases.
However, consideration is a doctrine deriving from the common law, and can be suspended under the principles of equity. Historically, England had two separate court systems, and the Courts of Chancery which derived their ultimate authority from the King via the Lord Chancellor, took precedence over the common law courts. So does its body of equitable principles since the systems were merged in 1875. The doctrine of promissory estoppel holds that when one person gives an assurance to another, the other relies on it and it would be inequitable to go back on the assurance, that person will be estopped from doing so. So in Hughes v Metropolitan Railway Co the House of Lords held that a tenant could not be ejected by the landlord for failing to keep up with his contractual repair duties because starting negotiations to sell the property gave the tacit assurance that the repair duties were suspended. And in Central London Properties Ltd v High Trees House Ltd Denning J held that a landlord would be estopped from claiming normal rent during the years of World War II because he had given an assurance that half rent could be paid till the war was done. The Court of Appeal went even further in a recent debt repayment case, Collier v P&M J Wright (Holdings) Ltd. Arden LJ argued that a partner who had been assured he was only liable to repay one third of the partnership's debts, rather than be jointly and severally liable for the whole, had relied on the assurance by making repayments, and it was inequitable for the finance company to later demand full repayment of the debt. Hence, promissory estoppel could circumvent the common law rule of Foakes. Promissory estoppel, however, has been thought to be incapable of raising an independent cause of action, so that one may only plead another party is estopped from enforcing their strict legal rights as a "shield", but cannot bring a cause of action out of estoppel as a "sword". In Australia, this rule was relaxed in Walton Stores (Interstate) Ltd v Maher, where Mr Maher was encouraged to believe he would have a contract to sell his land, and began knocking down his existing building before Walton Stores finally told him they did not wish to complete. Mr Maher got generous damages covering his loss (i.e. reliance damages, but seemingly damages for loss of expectations as if there were a contract). Yet, where an assurance concerns rights over property, a variant "proprietary estoppel" does allow a claimant to plead estoppel as a cause of action. So in Crabb v Arun District Council, Mr Crabbe was assured he would have the right to an access point to his land by Arun District Council, and relying on that he sold off half the property where the only existing access point was. The council was estopped from not doing what they said they would. Given the complex route of legal reasoning to reach simple solutions, it is unsurprising that a number of commentators, as well as the Principles of European Contract Law have called for simple abandonment of the doctrine of consideration, leaving the basic requirements of agreement and an intention to create legal relations. Such a move would also dispense with the need for the common law doctrine of privity.
The common law of privity of contract is a sub-rule of consideration because it restricts who can enforce an agreement to those who have brought consideration to the bargain. In an early case, Tweddle v Atkinson, it was held that because a son had not given any consideration for his father in law's promise to his father to pay the son £200, he could not enforce the promise. Given the principle that standing to enforce an obligation should reflect whoever has a legitimate interest in its performance, a 1996 report by the Law Commission entitled Privity of Contract: Contracts for the Benefit of Third Parties, recommended that while courts should be left free to develop the common law, some of the more glaring injustices should be removed. This led to the Contracts (Rights of Third Parties) Act 1999. Under section 1, a third party may enforce an agreement if it purports to confer a benefit on the third party, either individually or a member as a class, and there is no expressed stipulation that the person was not intended to be able to enforce it. In this respect there is a strong burden on the party claiming enforcement was not intended by a third party. A third party has the same remedies available as a person privy to an agreement, and can enforce both positive benefits, or limits on liability, such as an exclusion clause. The rights of a third party can then only be terminated or withdrawn without her consent if it is reasonably foreseeable that she would rely upon them.
The 1999 Act's reforms mean a number of old cases would be decided differently today. In Beswick v Beswick while the House of Lords held that Mrs Beswick could specifically enforce a promise of her nephew to her deceased husband to pay her £5 weekly in her capacity as administratrix of the will, the 1999 Act would also allow her to claim as a third party. In Scruttons Ltd v Midland Silicones Ltd it would have been possible for a stevedore firm to claim the benefit of a limitation clause in a contract between a carrier and the owner of a damaged drum of chemicals. Lord Denning dissented, arguing for abolition of the rule, and Lord Reid gave an opinion that if a bill of lading expressly conferred the benefit of a limitation on the stevedores, the stevedores give authority to the carrier to do that, and "difficulties about consideration moving from the stevedore were overcome" then the stevedores could benefit. In The Eurymedon, Lord Reid's inventive solution was applied where some stevedores similarly wanted the benefit of an exclusion clause after dropping a drilling machine, the consideration being found as the stevedores performing their pre-existing contractual duty for the benefit of the third party (the drilling machine owner). Now none of this considerably technical analysis is required, given that any contract purporting to confer a benefit on a third party may in principle be enforced by the third party.
Given that the 1999 Act preserves the promisee's right to enforce the contract as it stood at common law, an outstanding issue is to what extent a promisee can claim damages for a benefit on behalf of a third party, if he has suffered no personal loss. In Jackson v Horizon Holidays Ltd, Lord Denning MR held that a father could claim damages for disappointment (beyond the financial cost) of a terrible holiday experience on behalf of his family. However, a majority of the House of Lords in Woodar Investment Development Ltd v Wimpey Construction UK Ltd disapproved any broad ability of a party to a contract to claim damages on behalf of a third party, except perhaps in a limited set of consumer contracts. There is disagreement about whether this will remain the case. Difficulties also remain in cases involving houses built with defects, which are sold to a buyer, who subsequently sells to a third party. It appears that neither the initial buyer can claim on behalf of the third party, and nor will the third party be able to claim under the 1999 Act, as they will typically not be identified by the original contract (or known) in advance. Apart from this instance relating to tort, in practice the doctrine of privity is entirely ignored in numerous situations, throughout the law of trusts and agency.
If an enforceable agreement - a contract - exists, the details of the contract's terms matter if one party has allegedly broken the agreement. A contract's terms are what was promised. Yet it is up to the courts to construe evidence of what the parties said before a contract's conclusion, and construe the terms agreed. Construction of the contract starts with the express promises people make to one another, but also with terms found in other documents or notices that were intended to be incorporated. The general rule is that reasonable notice of the term is needed, and more notice is needed for an onerous term. The meaning of those terms must then be interpreted, and the modern approach is to construe the meaning of an agreement from the perspective of a reasonable person with knowledge of the whole context. The courts, as well as legislation, may also imply terms into contracts generally to 'fill gaps' as necessary to fulfil the reasonable expectations of the parties, or as necessary incidents to specific contracts. English law had, particularly in the late 19th century, adhered to the laissez faire principle of "freedom of contract" so that, in the general law of contract, people can agree to whatever terms or conditions they choose. By contrast, specific contracts, particularly for consumers, employees or tenants were built to carry a minimum core of rights, mostly deriving from statute, that aim to secure the fairness of contractual terms. The evolution of case law in the 20th century generally shows an ever clearer distinction between general contracts among commercial parties and those between parties of unequal bargaining power, since in these groups of transaction true choice is thought to be hampered by lack of real competition in the market. Hence, some terms can be found to be unfair under statutes such as the Unfair Contract Terms Act 1977 or the Unfair Terms in Consumer Contract Regulations 1999 and can be removed by the courts, with the administrative assistance of the Competition and Markets Authority.
Incorporation of terms
The promises offered by one person to another are the terms of a contract, but not every representation before an acceptance will always count as a term. The basic rule of construction is that a representation is a term if it looked like it was "intended" to be from the viewpoint of a reasonable person. It matters how much importance is attached to the term by the parties themselves, but also as a way to protect parties of lesser means, the courts added that someone who is in a more knowledgeable position will be more likely to taken to have made a promise, rather than a mere representation. In Oscar Chess Ltd v Williams Mr Williams sold a Morris car to a second hand dealer and wrongly (but in good faith, relying on a forged log-book) said it was a 1948 model when it was really from 1937. The Court of Appeal held that the car dealer could not later claim breach of contract because they were in a better position to know the model. By contrast, in Dick Bentley Productions Ltd v Harold Smith (Motors) Ltd the Court of Appeal held that when a car dealer sold a Bentley to a customer, mistakenly stating it had done 20,000 miles when the true figure was 100,000 miles, this was intended to become a term because the car dealer was in a better position to know. A misrepresentation may also generate the right to cancel (or "rescind") the contract and claim damages for "reliance" losses (as if the statement had not been made, and so to get one's money back). But if the representation is also a contract term a claimant may also get damages reflecting "expected" profits (as if the contract were performed as promised), though often the two measures coincide.
When a contract is written down, there is a basic presumption that the written document will contain all the terms of an agreement, and when commercial parties sign documents every term referred to in the document binds them, unless the term is found to be unfair, the signed document is merely an administrative paper, or under the very limited defence of non est factum. The rules differ in principle for employment contracts, and consumer contracts, or wherever a statutory right is engaged, and so the signature rule matters most in commercial dealings, where businesses place a high value on certainty. If a statement is a term, and the contracting party has not signed a document, then terms may be incorporated by reference to other sources, or through a course of dealing. The basic rule, set out in Parker v South Eastern Railway Company, is that reasonable notice of a term is required to bind someone. Here Mr Parker left his coat in the Charing Cross railway station cloakroom and was given a ticket that on the back said liability for loss was limited to £10. The Court of Appeal sent this back to trial for a jury (as existed at the time) to determine. The modern approach is to add that if a term is particularly onerous, greater notice with greater clarity ought to be given. Denning LJ in J Spurling Ltd v Bradshaw famously remarked that "Some clauses which I have seen would need to be printed in red ink on the face of the document with a red hand pointing to it before the notice could be held to be sufficient." In Thornton v Shoe Lane Parking Ltd a car park ticket referring to a notice inside the car park was insufficient to exclude the parking lot's liability for personal injury of customers on its premises. In Interfoto Picture Library Ltd v Stiletto Ltd Bingham LJ held that a notice inside a jiffy bag of photographic transparencies about a fee for late return of the transparencies (which would have totalled £3,783.50 for 47 transparencies after only a month) was too onerous a term to be incorporated without clear notice. By contrast in O’Brien v MGN Ltd Hale LJ held that the failure of the Daily Mirror to say in every newspaper that if there were too many winners in its free draw for £50,000 that there would be another draw was not so onerous on the disappointed "winners" as to prevent incorporation of the term. It can also be that a regular and consistent course of dealings between two parties lead the terms from previous dealings to be incorporated into future ones. In Hollier v Rambler Motors Ltd the Court of Appeal held that Mr Hollier, whose car was burnt in a fire caused by a careless employee at Rambler Motors' garage, was not bound by a clause excluding liability for "damage caused by fire" on the back of an invoice which he had seen three or four times in visits over the last five years. This was not regular or consistent enough. But in British Crane Hire Corporation Ltd v Ipswich Plant Hire Ltd Lord Denning MR held that a company hiring a crane was bound by a term making them pay for expenses of recovering the crane when it sunk into marshland, after only one prior dealing. Of particular importance was the equal bargaining power of the parties.
Once it is established which terms are incorporated into an agreement, their meaning must be determined. Since the introduction of legislation regulating unfair terms, English courts have become firmer in their general guiding principle that agreements are construed to give effect to the intentions of the parties from the standpoint of a reasonable person. This changed significantly from the early 20th century, when English courts had become enamoured with a literalist theory of interpretation, championed in part by Lord Halsbury. As greater concern grew around the mid-20th century over unfair terms, and particularly exclusion clauses, the courts swung to the opposite position, utilising heavily the doctrine of contra proferentum. Ambiguities in clauses excluding or limiting one party's liability would be construed against the person relying on it. In the leading case, Canada Steamship Lines Ltd v R the Crown's shed in Montreal harbour burnt down, destroying goods owned by Canada Steamship lines. Lord Morton held that a clause in the contract limiting the Crown's excluding liability for "damage... to... goods... being... in the said shed" was not enough to excuse it from liability for negligence because the clause could also be construed as referring to strict liability under another contract clause. It would exclude that instead. Some judges, and in particular Lord Denning wished to go further by introducing a rule of "fundamental breach of contract" whereby no liability for very serious breaches of contract could be excluded at all. While the rules remain ready for application where statute may not help, such hostile approaches to interpretation were generally felt to run contrary to the plain meaning of language.
Reflecting the modern position since unfair terms legislation was enacted, the most quoted passage in English courts on the canons of interpretation is found in Lord Hoffmann's judgment in ICS Ltd v West Bromwich BS. Lord Hoffmann restated the law that a document's meaning is what it would mean (1) to a reasonable person (2) with knowledge of the context, or the whole matrix of fact (3) except prior negotiations (4) and meaning does not follow what the dictionary says but meaning understood from its context (5) and the meaning should not contradict common sense. The objective is always to give effect to the intentions of the parties. While it remains the law for reasons of litigation cost, there is some contention over how far evidence of prior negotiations should be excluded by the courts. It appears increasingly clear that the courts may adduce evidence of negotiations where it would clearly assist in construing the meaning of an agreement. This approach to interpretation has some overlap with the right of the parties to seek "rectification" of a document, or requesting from a court to read a document not literally but with regard to what the parties can otherwise show was really intended.
Part of the process of construction includes the courts and statute implying terms into agreements. Courts imply terms, as a general rule, when the express terms of a contract leave a gap to be filled. Given their basic attachment to contractual freedom, the courts are reluctant to override express terms for contracting parties. Legislation can also be a source of implied terms, and may be overridden by agreement of the parties, or have a compulsory character. For contracts in general, individualised terms are implied (terms "implied in fact") to reflect the "reasonable expectations of the parties", and like the process of interpretation, implication of a term of a commercial contract must follow from its commercial setting. In Equitable Life Assurance Society v Hyman the House of Lords held (in a notorious decision) that "guaranteed annuity rate" policy holders of the life insurance company could not have their bonus rates lowered by the directors, when the company was in financial difficulty, if it would undermine all the policy holders' "reasonable expectations". Lord Steyn said that a term should be implied in the policy contract that the directors' discretion was limited, as this term was "strictly necessary... essential to give effect to the reasonable expectations of the parties". This objective, contextual formulation of the test for individualised implied terms represents a shift from the older and subjective formulation of the implied term test, asking like an "officious bystander" what the parties "would have contracted for" if they had applied their minds to a gap in the contract. In AG of Belize v Belize Telecom Ltd, Lord Hoffmann in the Privy Council added that the process of implication is to be seen as part of the overall process of interpretation: designed to fulfill the reasonable expectations of the parties in their context. The custom of the trade may also be a source of an implied term, if it is "certain, notorious, reasonable, recognised as legally binding and consistent with the express terms".
In specific contracts, such as those for sales of goods, between a landlord and tenant, or in employment, the courts imply standardised contractual terms (or terms "implied in law"). Such terms set out a menu of "default rules" that generally apply in absence of true agreement to the contrary. In one instance of partial codification, the Sale of Goods Act 1893 summed up all the standard contractual provisions in typical commercial sales agreements developed by the common law. This is now updated in the Sale of Goods Act 1979, and in default of people agreeing something different in general its terms will apply. For instance, under section 12-14, any contract for sale of goods carries the implied terms that the seller has legal title, that it will match prior descriptions and that it is of satisfactory quality and fit for purpose. Similarly the Supply of Goods and Services Act 1982 section 13 says services must be performed with reasonable care and skill. As a matter of common law the test is what terms are a "necessary incident" to the specific type of contract in question. This test derives from Liverpool City Council v Irwin where the House of Lords held that, although fulfilled on the facts of the case, a landlord owes a duty to tenants in a block of flats to keep the common parts in reasonable repair. In employment contracts, multiple standardised implied terms arise also, even before statute comes into play, for instance to give employees adequate information to make a judgment about how to take advantage of their pension entitlements. The primary standardised employment term is that both employer and worker owe one another an obligation of "mutual trust and confidence". Mutual trust and confidence can be undermined in multiple ways, primarily where an employer's repulsive conduct means a worker can treat herself as being constructively dismissed. In Mahmud and Malik v Bank of Credit and Commerce International SA the House of Lords held the duty was breached by the employer running the business as a cover for numerous illegal activities. The House of Lords has repeated that the term may always be excluded, but this has been disputed because unlike a contract for goods or services among commercial parties, an employment relation is characterised by unequal bargaining power between employer and worker. In Johnstone v Bloomsbury Health Authority the Court of Appeal all held that a junior doctor could not be made to work at an average of 88 hours a week, even though this was an express term of his contract, where it would damage his health. However, one judge said that result followed from application of the Unfair Contract Terms Act 1977, one judge said it was because at common law express terms could be construed in the light of implied terms, and one judge said implied terms may override express terms. Even in employment, or in consumer affairs, English courts remain divided about the extent to which they should depart from the basic paradigm of contractual freedom, that is, in absence of legislation.
In the late 20th century, Parliament passed its first comprehensive incursion into the doctrine of contractual freedom in the Unfair Contract Terms Act 1977. The topic of unfair terms is vast, and could equally include specific contracts falling under the Consumer Credit Act 1974, the Employment Rights Act 1996 or the Landlord and Tenant Act 1985. Legislation, particularly regarding consumer protection, is also frequently being updated by the European Union, in laws like the Flight Delay Compensation Regulation, or the Electronic Commerce Directive, which are subsequently translated into domestic law through a statutory instrument authorised through the European Communities Act 1972 section 2(2), as for example with the Consumer Protection (Distance Selling) Regulations 2000. The primary legislation on unfair contract terms deriving from the EU is the Unfair Terms in Consumer Contracts Regulations 1999. Both UCTA 1977 and UTCCR 1999 cover similar ground and can give rise to concurrent claims. For this reason the Law Commission devised a draft Unfair Contract Terms Bill to unify the two in one document, and make protection for small business explicit, but Parliament has not acted yet.
The Unfair Contract Terms Act 1977 regulates clauses that exclude or limit terms implied by the common law or statute. Its general pattern is that if clauses restrict liability, particularly negligence, of one party, the clause must pass the "reasonableness test" in section 11 and Schedule 2. This looks at the ability of either party to get insurance, their bargaining power and their alternatives for supply, and a term's transparency. In places the Act goes further. Section 2(1) strikes down any term that would limit liability for a person's death or personal injury. Section 2(2) stipulates that any clause restricting liability for loss to property has to pass the "reasonableness test". One of the first cases, George Mitchell Ltd v Finney Lock Seeds Ltd saw a farmer successfully claim that a clause limiting the liability of a cabbage seed seller to damages for replacement seed, rather than the far greater loss of profits after crop failure, was unreasonable. The sellers were in a better position to get insurance for the loss than the buyers. Under section 3 businesses cannot limit their liability for breach of contract if they are dealing with "consumers", defined in section 12 as someone who is not dealing in the course of business with someone who is, or if they are using a written standard form contract, unless the term passes the reasonableness test. Section 6 states the implied terms of the Sale of Goods Act 1979 cannot be limited unless reasonable. If one party is a "consumer" then the SGA 1979 terms become compulsory. In other words, a business can never sell a consumer goods that do not work, even if the consumer signed a document with full knowledge of the exclusion clause. Under section 13, it is added that variations on straightforward exemption clauses will still count as exemption clauses caught by the Act. So for example, in Smith v Eric S Bush the House of Lords held that a surveyor's term limiting liability for negligence was ineffective, after the chimney came crashing through Mr Smith's roof. The surveyor could get insurance more easily than Mr Smith. Even though there was no contract between them, because section 1(1)(b) applies to any notice excluding liability for negligence, and even though the surveyor's exclusion clause might prevent a duty of care arising at common law, section 13 "catches" it if liability would exist "but for" the notice excluding liability: then the exclusion is potentially unfair.
Relatively few cases are ever brought directly by consumers, given the complexity of litigation, cost, and its worth if claims are small. In order to ensure consumer protection laws are actually enforced, the Office of Fair Trading has jurisdiction to bring consumer regulation cases on behalf of consumers after receiving complaints. Under Unfair Terms in Consumer Contracts Regulations 1999 regulations 10-12, the OFT has jurisdiction to collect and consider complaints, and then seek injunctions in the courts to stop businesses using unfair terms (under any legislation). The UTCCR 1999 are both broader than UCTA 1977 in that they cover any unfair terms, not just exemption clauses, but narrower in that they only operate for consumer contracts. The UTCCR 1999 definition of a consumer is also narrower, under regulation 3, where a consumer must be a natural person (and never a legal person, like a company) who contracts outside his business. However, while the United Kingdom could always opt for greater protection, when it translated the Directive into national law it opted to follow the bare minimum requirements, and not to cover every contract term. Under regulation 6(2), a court may only assess the fairness of terms which do not involve the "definition of the main subject matter of the contract", or terms which relate to "price or remuneration" of the thing sold. Outside such "core" terms, a term may be unfair, under regulation 5 if it is not one that is individually negotiated, and if contrary to good faith it causes a significant imbalance in the rights and obligations of the parties. A list of examples of unfair terms are set out in Schedule 2. In DGFT v First National Bank plc the House of Lords held that given the purpose of consumer protection, regulation 6(2) should be construed tightly and Lord Bingham stated good faith implies fair, open and honest dealing. This all meant that the bank's practice of charging its (higher) default interest rate to customers who had (lower) interest rate set by a court under a debt restructuring plan could, under regulation 6(2), be assessed for fairness, but that under regulation 5 the term did not create such an imbalance given the bank wished only to have its normal interest. This appeared to grant a relatively open role for the Office of Fair Trading to intervene against unfair terms. However in OFT v Abbey National plc the Supreme Court held that if a term related in any way to price, it could not by virtue of regulation 6(2) be assessed for fairness. All the High Street banks, including Abbey National, had a practice of charging high fees if account holders, unplanned, exceeded through withdrawals their normal overdraft limit. Overturning a unanimous Court of Appeal, the Supreme Court viewed that if the thing being charged for was part of a "package" of services, and the bank's remuneration for its services partly came from these fees, then there could be no assessment of the fairness of terms. This controversial stance was tempered by their Lordships' emphasis that any charges must be wholly transparent, though its compatibility with EU law is not yet established by the European Court of Justice, and it appears questionable that it would be decided the same under the proposed Unfair Contract Terms Bill.
Conclusion and remedies
Although promises are made to be kept, parties to an agreement are generally free to determine how a contract is concluded, can be terminated and remedial consequences for breach of contract, just as they can generally determine a contract's content. The courts have fashioned only residual limits on the parties' autonomy to determine how a contract concludes. The courts' default, or standard rules, which are generally alterable, are first that a contract is automatically concluded if it becomes impossible for one party to perform. Second, if one party breaches her side of the bargain in a serious way, the other party may cease his own performance. If a breach is not serious, the innocent party must continue his own obligations but may claim a remedy in court for the defective or imprecise performance he has received. Third, the principle remedy for breach of contract is compensatory damages, limited to losses that one might reasonably expect to result from a breach. This means a sum of money to put the claimant in mostly the same position as if the contract breaker had performed her obligations. In a small number of contract cases, closely analogous to property or trust obligations, a court may order restitution by the contract breaker so that any gains she has made by breaking the agreement will be stripped and given to the innocent party. Additionally where a contract's substance is for something so unique that damages would be an inadequate remedy courts may use their discretion to grant an injunction against the contract breaker doing something or, unless it is a personal service, positively order specific performance of the contract terms.
Performance and breach
Generally speaking, all parties to a contract must precisely perform their obligations or there is a breach of contract and, at the least, damages can be claimed. However, as a starting point, to claim that someone else has breached their side of a bargain, one must have at least "substantially performed" their own obligations. For example, in Sumpter v Hedges a builder performed £333 worth of work, but then abandoned completion of the contract. The Court of Appeal held he could not recover any money for the building left on the land, even though the buyer subsequently used the foundations to complete the job. This rule provides a powerful remedy in home construction cases to a customer. So in Bolton v Mahadeva Mr Bolton installed a £560 heating system in Mahadeva's house. However, it leaked and would cost £174 to correct (i.e. 31% of the price). Mahadeva did not pay at all, and the Court of Appeal held this was lawful because the performance was so defective that there could not be said to be any substantial performance. However where an obligation in a contract is "substantially performed", the full sum must be paid, only then deducting an amount to reflect the breach. So in Hoenig v Isaacs Denning LJ held a builder who installed a bookcase poorly, with a price of £750 but costing only £55 to correct (i.e. 7.3% of the price), had to be paid minus the cost of correction. If a contract's obligations are construed as consisting of an "entire obligation", performance of it all will be a condition precedent (a requirement before) to performance from the other side falling due, and allowing a breach of contract claim.
In the simplest case of a contractual breach, the performance that was owed will merely be the payment of a provable debt (an agreed sum of money). In this case, the Sale of Goods Act 1979 section 49 allows for a summary action for price of goods or services, meaning a quick set of court procedure rules are followed. Consumers also benefit under sections 48A-E, with a specific right to have a broken product to be repaired. An added benefit is that if a claimant brings an action for debt, she or he will have no further duty to mitigate his loss. This was another requirement that common law courts had invented, before a claim for breach of contract could be enforced. For instance, in contracts for services that spanned a long period of time (e.g. 5 years), the courts would often state that because a claimant should be able to find alternative work in a few months, and so should not receive money for the whole contract's duration. However, White & Carter (Councils) Ltd v McGregor an advertising company had a contract to display adverts for McGregor's garage business on public dustbins. McGregor said he wished to cancel the deal, but White & Carter Ltd refused, displayed the adverts anyway, and demanded the full sum of money. McGregor argued that they should have attempted to mitigate their loss by finding other clients, but the majority of the Lords held there was no further duty to mitigate. Claims in debt were different from damages.
Remedies are often agreed in a contract, so that if one side fails to perform the contract will dictate what happens. A simple, common and automatic remedy is to have taken a deposit, and to retain it in the event of non-performance. However, the courts will often treat any deposit that exceeds 10 per cent of the contract price as excessive. A special justification will be required before any greater sum may be retained as a deposit. The courts will view a large deposit, even if expressed in crystal clear language, as a part payment of the contract which if unperformed must be restored in order to prevent unjust enrichment. Nevertheless where commercial parties of equal bargaining power wish to insist on circumstances in which a deposit will be forfeit and insist precisely on the letter of their deal, the courts will not interfere. In Union Eagle Ltd v Golden Achievement Ltd a purchaser of a building in Hong Kong for HK$4.2 million had a contract stipulating completion must take place by 5pm on 30 September 1991 and that if not a 10 per cent deposit would be forfeited and the contract rescinded. The purchaser was 10 minutes late only, but the Privy Council advised that given the necessity of certain rules and to remove business' fear of courts exercising unpredictable discretion, the agreement would be strictly enforced. Agreements may also state that, as opposed to a sum fixed by the courts, a particular sum of "liquidated damages" will be paid upon non-performance. The courts place an outer-limit on liquidated damages clauses if they became so high, or "extravagant and unconscionable" as to look like a penalty. This jurisdiction is exercised rarely, so in Murray v Leisureplay plc the Court of Appeal held that a severance payment of a whole year's salary to a company's Chief Executive in the event of dismissal before a year was not a penalty clause. Additionally, the ability of courts to strike down clauses as penalties only applies to clauses for payment of money upon the breach of the contract rather than events during its performance, though the Unfair Terms in Consumer Contracts Regulations 1999 confers jurisdiction to interfere with unfair terms used against consumers.
Frustration and common mistake
Early common law cases held that performance of a contract always had to take place. No matter what hardship was encountered contracting parties had absolute liability on their obligations. In the 19th century the courts developed a doctrine that contracts which became impossible to perform would be frustrated and automatically come to an end. In Taylor v Caldwell Blackburn J held that when the Surrey Gardens Music Hall unexpectedly burnt down, the owners did not have to pay compensation to the business that had leased it for an extravagant performance, because it was neither party's fault. An assumption underlying all contracts (a "condition precedent") is that they are possible to perform. People would not ordinarily contract to do something they knew was going to be impossible. Apart from physical impossibility, frustration could be down to a contract becoming illegal to perform, for instance if war breaks out and the government bans trade to a belligerent country, or perhaps if the whole purpose of an agreement is destroyed by another event, like renting a room to watch a cancelled coronation parade. But a contract is not frustrated merely because a subsequent event makes the agreement harder to perform than expected, as for instance in Davis Contractors Ltd v Fareham UDC where a builder unfortunately had to spend more time and money doing a job than he would be paid for because of an unforeseen shortage of labour and supplies. The House of Lords denied his claim for contract to be declared frustrated so he could claim quantum meruit. Because the doctrine of frustration is a matter of construction of the contract, it can be contracted around, through what are called "force majeure" clauses. Similarly, a contract can have a force majeure clause that would bring a contract to an end more easily than would common law construction. In The Super Servant Two Wijsmuller BV contracted to hire out a self-propelling barge to J. Lauritzen A/S, who wanted to tow another ship from Japan to Rotterdam, but had a provision stating the contract would terminate if some event made it difficult related to the ‘perils or dangers and accidents of the sea’. Wijsmuller BV also had a choice of whether to provide either The Superservant One or Two. They chose Two and it sank. The Court of Appeal held that the impossibility to perform the agreement was down to Wijsmuller's own choice, and so it was not frustrated, but that the force majeure clause did cover it. The effect of a contract being frustrated is that it is that both parties are prospectively discharged from performing their side of the bargain. If one side has already paid money over or conferred another valuable benefit, but not got anything in return yet, contrary to the prior common law position, the Law Reform (Frustrated Contracts) Act 1943 gives the court discretion to let the claimant recover a 'just sum', and that means whatever the court thinks fit in all the circumstances.
A related doctrine is "common mistake", which since the decision of Lord Phillips MR in The Great Peace is essentially the same in operation as frustration, except that the event making a contract impossible to perform takes place before, not after, a contract is concluded. A "common mistake" differs from the "mistakes" that take place between offers and acceptance (that mean there is no agreement in the first place), or the so-called "mistake about identity" cases that follow from a fraudulent misrepresentation (which typically makes a contract voidable, not void, unless in a written document and concluded at a distance), because it is based on performance becoming seriously difficult to perform. For instance, in Courturier v Hastie a corn shipment had decayed by the time two businesspeople had contracted for it, and so it was held (perhaps controversially) that the seller was not liable, because it was always physically impossible. And in Cooper v Phibbs the House of Lords held that an agreement to lease out a fishery was void because it turned out the lessee was in fact the owner. It is legally impossible to be leased something one owns. Again, the doctrine of common mistake may be contracted around, so in McRae v Commonwealth Disposals Commission it was held that despite the fact that a wrecked ship off the Great Barrier Reef never in fact existed, because a salvage business was actually promised by the Australian government that it was there, there was no common mistake. Like frustration, the doctrine operates only in narrow confines. In Bell v Lever Bros Ltd Lord Atkin stated that a mistake must be of such a ‘fundamental character as to constitute an underlying assumption without which the parties would not have entered into the agreements’. Post-war, Denning LJ added to the doctrine, beyond its narrow legal confines, in line with the more permissive approach recognised throughout civil law countries, most of the Commonwealth and the United States. In Solle v Butcher he held that in equity a contract could be deemed voidable (rather than outright void) if it would be 'unconscientious' for a court to hold someone to a bargain. This gave the courts some flexibility in the kind of remedy they would grant, and could be more generous in the circumstances they allowed escape. But in The Great Peace, Lord Phillips MR said that this more permissive doctrine had been contrary to the House of Lords authority in Bell v Lever Bros Ltd. Although it probably would not have been avoidable under the mistake in equity doctrine anyway, Lord Phillips MR held that a rescue company could not escape from an agreement to save a ship because both parties were mistaken that the distressed vessel was further than they originally thought. The result is that English contract law jealously prevents escape from an agreement, unless there is a serious breach because of the conduct of one party, which gives rise to the right to terminate.
The primary way in which contracts are brought to an untimely end is through one party not performing the major primary obligations on her side of the bargain. As a rule, if a breach is small the other party must still go ahead and perform his obligations, but will then be able to claim compensation, or a "secondary obligation" from the party in breach. If, however, the breach is very big, "fundamental" or goes "to the root of the contract", then the innocent party gets the right to elect to terminate his own performance for the future. The same goes where one party makes clear they have no intention of performing their side of the bargain, in an "anticipatory repudiation", so the innocent party can go straight to court to claim a remedy, rather than waiting till the contract's date for performance which never arrives. The test for whether a term's breach will allow for termination essentially depends on construction of the contract's terms as a whole by the court, following the same rules as for any other term. In Bettini v Gye, Blackburn J held that although an opera singer arrived 4 days late for rehearsals, given that the contract was to last three and a half months, and only the first week of performance would be slightly affected, the Opera House owner was not entitled to turn the singer away. The opera owner could have withheld some payment to reflect his loss from the breach, but should have let the show go on. The intentions of the parties manifested in the contract showed that such a breach was not so serious as to give rise to the right to terminate. As Lord Wilberforce said in The Diana Prosperity the Court must, ‘place itself in thought in the same factual matrix as that in which the parties were.’
While when a contract is silent a court must essentially make an informed choice about whether a right to terminate should exist, if a contract deals with the matter the courts' general approach is to follow the parties' wishes. The drafters of the old Sale of Goods Act 1893 distinguished between "conditions" (major terms, which when breached confer a right to terminate) and "warranties" (minor terms, which do not), and under the present Sale of Goods Act 1979 some terms, such as descriptions about quality, are conditions by default. A third kind is an "innominate term", which is typically a vague term like citrus pulp pellets being "in good condition", or a ship having to be "seaworthy". Because such a term could be breached in both a major way (e.g. the ship sinks) or a trivial way (e.g. a lifejacket is missing) the court will determine whether the right to terminate arises based on how serious in fact the consequences of the breach were. So in The Hong Kong Fir, Lord Diplock held that a ship crew being too incompetent to properly operate the vessel did not breach the contract's "seaworthiness" term in a serious enough way as to allow for termination, because the charterers still got a working boat and could have replaced the crew. If a contract specifies that a particular obligation is a "condition" the dominant approach of the courts is to treat it as such. Nevertheless, concerned with the ability of a stronger party to specify the terms it finds most convenient as "conditions" at the expense of the weaker, courts retain the ability to construe an agreement contra proferentum. In L Schuler AG v Wickman Machine Tool Sales Ltd the majority of the House of Lords held that clause 7 of a contract, stating it was "a condition of this agreement" that Mr Wickman would visit 6 major car companies "at least once in every week" to try selling panel presses, was not really a condition in the technical sense. So when Mr Wickman was found to have visited much less, Schuler AG could not dismiss him. This was because clause 11 said that 60 days of warning was needed before Schuler AG could terminate, so the whole contract read together meant the clause 7 had to be subject to clause 11. The language in the contract is not decisive. If the word "condition" is not used, but the contract describes a right to terminate, such as the contract being terminable for "any breach" of obligation, the issue is, again, one of construction and the courts may be reluctant to give effect to the plain meaning if it would have "draconian consequences" for the weaker party. By contrast, in Bunge Corporation v Tradax SA the House of Lords held that giving notice for a ship to start loading the soya bean cargo four days late, when the contract expressly stipulated the date, should allow the right to terminate regardless of the actual consequences of the breach. In mercantile contracts, ‘broadly speaking time will be considered of the essence’, and so it is highly likely the courts will enforce obligations to the letter.
Damages and injunctions
Whether or not a contract is terminated, every breach of a substantially performed contract gives rise to the right to a remedy. A court's power to award remedies is the final sanction against non-performance and, unless the defendant is insolvent, the objective is to achieve full compensation for the innocent party as if the contract were performed. This measure of the remedy to protect "expectations" forms a principal distinction between contracts as obligations from torts or unjust enrichment. In cases where performance is defective, the courts generally award money for the cost of curing the defect, unless the sum would be disproportionate and another sum would adequately achieve the same compensatory objective. In Ruxley Electronics Ltd v Forsyth although a £17,797 swimming pool was built 18 inches too shallow, the land's market value was exactly the same. The House of Lords' solution, rather than awarding the cost of rebuilding it at £21,560 and rather than reject any award at all, was to reflect the forgone "consumer surplus" or the "loss of amenity" with an award of £2,500. Greater recognition of benefits in contracts other than purely financial ones has also been seen in cases concerning contracts where pleasure, enjoyment, relaxation or the avoidance of stress are construed as being "important terms". In Jarvis v Swans Tours Ltd Lord Denning MR held that a council worker could get not just his money back, but also a small sum to reflect his disappointment after his dream-holiday to the Swiss Alps, contrary to the promises in Swan Tours' travel brochure, proved a boring disaster, complete with sub-standard yodelling. And in Farley v Skinner the House of Lords held that a homebuyer close to Gatwick airport could recover money for lack of peaceful enjoyment, and the disruption of what would otherwise be his "quiet contemplative breakfast" from the house surveyor who assured there would be no noise. The market value of the property was unchanged, but ensuring peace and quiet had been an important term in their agreement. The courts have, however, remained reluctant to allow recovery for disappointment over any breach of contract, particularly in employment where a flood of people might claim damages for stress and upset after a wrongful dismissal.
In addition to damages for not getting the thing promised itself, a contract breaker must compensate for the costly consequences of the breach that one would reasonably expect to exist. There must be a causal connection between the breach and the consequence complained of. In Saamco v York Montague Ltd it was held a bank could not recover damages from property valuer for all of the difference in what the properties it bought after getting the valuations were assured to be and actual property values, because a large part of the difference resulted from generally depressed market prices following "Black Wednesday" in 1992. In a business deal, calculation will typically be based on the forgone profits that one could reasonably have expected to make. This could also include the "loss of a chance" to profit, so in Chaplin v Hicks an entrant in a beauty contest wrongfully excluded from the final round was awarded 25% of the final prize money to reflect her 1 in 4 chance of having won. One limit lies at consequential losses that are too "remote", or are not a natural result of the breach, and are not in the parties' contemplation. In Hadley v Baxendale a miller tried to recover damages from Baxendale's delivery company for the lost profits from his mill grinding to a halt, after they were late delivering a crankshaft back from being fixed. But Alderson B held that because millers would usually be expected to keep spare crank shafts, and because he had not informed Baxendale of the importance of the timely delivery, an award for profits could not be compensated. More recently in The Achilleas the majority of the House of Lords preferred to express the remoteness rule as one of construing the contract to reflect the parties' "background of market expectations". Transfield Shipping returned The Achilleas late to its owner, Mercator, which led Mercator to lose a lucrative contract with Cargill that would make over $1.3 million, an occurrence that was plainly a natural consequence of the breach and easily foreseeable. Yet because the standard practice and expectation in the shipping industry was that if a ship were returned late only the ordinary sum for hire would be due, this was the limit on recovery. It is also possible to lose one's entitlement to damages if steps are not taken to mitigate further losses, that any prudent person would, rather than sitting back and letting losses run up. But the burden of proof of a failure to mitigate is on a contract breaker, to whom the courts are unlikely to be sympathetic. A contract breaker could may also, if a concurrent liability arises in tort, argue a claimant's damages should be reduced to reflect their contributory fault, and the courts can reduce an award to achieve a just and equitable result. Sometimes potential profits will be too uncertain, or a general fall in market prices means that even claiming damages for the thing itself would leave one in a negative position, and so the courts allow a claimant to choose whether to sue, not for a failure in expectations, but to cover her expenses in preparing for the contract, or the "reliance interest". In Anglia Television Ltd v Reed a TV channel successfully sued Robert Reed for not turning up for shooting a film. It was unclear whether the film would make any profits at all, and so Anglia TV got compensated for its wasted expenses in preparing the set. The level of damages is generally assessed at the date of the breach, but this is variable if the court thinks another time would be fairer.
By way of exception, alternative remedies to compensatory damages are available depending on the contract's nature. If damages would be an inadequate remedy, for instance, because the subject matter was a unique painting, or a piece of land, or was to deliver petrol during an oil crisis, a court may compel literal or specific performance of the contract's terms. It can also compel a defendant to refrain from actions that would continue a breach of contract. Injunctions are discretionary remedies, and so they are not awarded in cases where it might cause hardship, like compelling conveyance of property when it would mean an unexpectedly disabled inhabitant would lose her home. Additionally, the courts have, at least since the Slavery Abolition Act 1833, refused to grant specific performance of contracts involving personal services. This is part of a more general principle that two (potentially hostile) parties to litigation should not be made to work in a long term relationship. In Cooperative Insurance Ltd v Argyll Ltd although a shop broke its contract with a shopping centre to keep its business operating, and actual performance was important to keep flagship businesses and so attract more customers to the centre generally, specific performance was not granted because compelling a potentially loss making business to keep operating was draconian and probably not capable of being policed by the court. No award can be made which punishes, or makes an example of a defendant, even for a cynical and calculated breach of contract. However, in limited situations, a claimant may succeed in a claim for restitution of the contract breaker's gains, as is routinely available in cases involving trustees or other fiduciaries who profit from transactions where they have a conflict of interest. In the leading case, Attorney General v Blake a former secret service agent's profits from book sales, which recounted government information in breach of Blake's employment contract, were stripped. While Lord Nicholls stated, other than compensatory damages are not an adequate remedy, that "no fixed rules can be prescribed" and their Lordships were eager to not hamper the development of the law, the cases where such awards have been made in contract have all involved some quasi-proprietary element. In an earlier case, Wrotham Park Ltd v Parkside Homes Ltd, Brightman J awarded a percentage of gains resulting from building a lot of homes in breach of a restrictive covenant, based on a sum that the parties would have been likely to contract for had they struck a bargain. More recently in Experience Hendrix LLC v PPX Enterprises Inc Mance LJ held that a percentage of profits made by PPX breaching the intellectual property rights on songs by Jimi Hendrix would have to be paid up. So if in the course of a contract one party is in a position to take advantage of another's rights without their fully informed consent, a restitutionary remedy can be awarded.
Cancelling the contract
Because contracts concern voluntary obligations, the courts employ a number of protections to ensure only people who give informed and true consent are legally bound. Before 1875, the common law courts only allowed escape from an agreement and damages if someone was induced to enter an agreement by fraud or was put under physical duress, or suffered from a lack of legal capacity. The courts of equity, however, were significantly more generous because they allowed "rescission" (i.e. cancellation) of a contract if a person was the victim of any misrepresentation, even an innocent one, and any "undue influence", beyond influence by physical threats. In these situations the victim of the misrepresentation or unconscionable behaviour has the option to avoid the contract. If avoided, the parties are both entitled to have returned whatever property they had already conveyed, so nobody remains unjustly enriched (though this terminology was not used till the 20th century). As the 20th century unfolded, the courts and statute expanded on the range of circumstances in which a person could claim damages for negligent misrepresentation, on top of fraud. As concern over the use of unfair terms grew, there were calls to recognise a positive duty on contracting parties to disclose material facts as part of a broader duty of "good faith" and some judges attempted to follow the American Uniform Commercial Code by fashioning a broader doctrine of "unconscionable" bargains, procured through inequality of bargaining power. This development was, however, stopped by the House of Lords, so that problems of unfair contract terms continued to be dealt with through targeted legislation. The courts also declare contracts void if they were for an illegal purpose, and refuse to enforce the agreement, or give any legal remedy if doing so would require a person to rely on their illegal act.
Disclosure and misrepresentation
In a specific set of contracts, negotiating parties must conduct themselves in utmost good faith (or "uberrima fides") by disclosing all material facts to one another. In one of the earliest cases, Carter v Boehm, Mr Carter bought an insurance policy for any losses to a naval fort of the British East India Company in Sumatra, but failed to tell his insurer, Boehm, that the fort was only built to resist attacks from locals, and the French were likely to invade. Lord Mansfield held the policy was invalid. Since insurance is a contract based on speculation and the special facts "lie most commonly in the knowledge of the insured only", good faith precluded Mr Carter "concealing what he privately knows". The same policy was extended for sale of shares in a company. So in Erlanger v New Sombrero Phosphate Co the promoter and director-to-be of a guano mining business failed to disclose he had paid for the mining rights on the island of Sombrero half as much as he subsequently was valuing the company at. The House of Lords held that, despite a delay in making a claim, the purchasers of the shares had a right to their money back. Lord Blackburn held, further, that it was no barrier to rescission that the guano could not be put back in the ground. Counter-restitution (i.e. both parties giving back what they had got), if it could be substantially made in its monetary equivalent, was enough. However, outside insurance, partnerships, surety, fiduciary relations, company shares, a narrow range of regulated securities, and consumer credit agreements, the duty on negotiating parties to disclose material facts does not extend to most contracts. Even though there is a duty to correct previous false statements, in Smith v Hughes, it was held that the general duty is merely to not make active misrepresentations.
Hence, in the general law of contract, negotiating parties have a duty to not make false statements of fact or law, or misrepresent themselves through conduct. Statements of opinion, "mere puff" or vague "sales talk" (e.g. "this washing powder will make your clothes whiter than white!"), are generally not considered factual. However representations of people who profess special skill or knowledge are more likely to be actionable, as they warrant their opinions are based on concrete facts. So in Esso Petroleum Co Ltd v Mardon Lord Denning MR held that Esso's expert opinion that a petrol station would have 200,000 gallons worth of business was an actionable misrepresentation. If someone is induced to enter a contract by any misrepresentation, whether fraudulent, negligent or innocent, they are entitled to rescind the contract and get back the property they have conveyed. As a remedy originating in the courts of equity, this right to rescind could be lost, in four situations that courts regard as unfair to allow a claim. First, if a claimant takes too long to claim, the lapse of time (or "laches") will create a bar to rescission. Second, if a claimant affirms a contract by expressly showing they still consent to a deal even though they are aware of a misrepresentation, rescission is barred. Third, if a third party's rights have intervened, when that third party is a bona fide purchaser rescission will be barred to the extent that property cannot be recovered from the third party (although a claim in damages can still exist against the misrepresentor). Fourth, and important in practice to prevent unjust enrichment is that counter-restitution must be possible. There is confusion over whether in cases at law, rather than in equity, counter-restitution must be precise (i.e. a thing received must be given back in specie) or whether, as in Erlanger, substantial counter-restitution may be in money.
Depending on how a court construes negotiations, a representation could become a term of the contract, as well as one giving rise to the right to rescind. A misrepresentation that is a term, will entitle the misrepresentee to a simple breach of contract claim, with "expectation damages" for loss of potential profits (subject to remoteness and the duty to mitigate). If the misrepresentation is not a term, then damages may also be available, but only "reliance damages" for losses that have been incurred. Until 1963, the general rule was that only for fraud (i.e. an intentional or reckless misrepresentation) were damages available. For fraud, damages are available for all losses that flow directly from the misrepresentation. However, in its Tenth Report the Law Reform Committee recommended that damages should also be available for negligent misrepresentations. This led to the drafting of the Misrepresentation Act 1967, and just before the Act was passed, the House of Lords also decided in Hedley Byrne & Co Ltd v Heller & Partners Ltd there should be a new claim for negligent misrepresentation at common law. While Hedley Byrne remains an important case for an independent action in tort, MA 1967 section 2(1) was instantly more generous than the common law. It allows damages if the claimant shows a defendant has made a false representation, and then the defendant cannot prove that they had reasonable grounds for making a statement and honestly believed it was true. So while the common law would put the burden of proof on a claimant to show a defendant made a negligent misstatement, MA 1967 s 2(1) shifts the burden of proof to the defendant. The measure of damages is also more generous under the Act than at common law, because just as the Law Reform Report was drafted, the House of Lords was introducing a limit on the quantum of damages for negligence to losses that are reasonably foreseeable. MA 1967 section 2(1), however, was drafted by reference to state the same damages were available as for fraud. So in Royscot Trust Ltd v Rogerson, the Court of Appeal held that even where a representation is negligent, and not fraud, the same quantum of damages is available as for fraud. This is controversial among academics who argue that fraud is more morally culpable than negligent behaviour, and should therefore deserve a more severe limit on compensation, though it is not entirely resolved what the proper circumstances for remoteness ought to be. Under section 2(2) the court has the discretion to substitute the right to rescind a contract for a small misrepresentation with an award of damages. Under section 3, a court has the power to strike down clauses excluding remedies for misrepresentation if they fail the reasonableness test in the Unfair Contract Terms Act 1977.
An exception to the law on misrepresentation - that contracts are voidable at the instance of the misrepresentee, but the right to rescission can be barred inter alia by the intervention of third party rights - arises when someone is induced by the fraudulent misrepresentation to enter an agreement through a written document at a distance (and not when a transaction is face to face). In Shogun Finance Ltd v Hudson a crook obtained Mr Patel's credit details and bought a Mitsubishi Shogun on hire purchase contract at a car dealer. Shogun Finance was faxed through Mr Patel's details, and agreed to finance the purchase of the car, letting the crook drive away. Subsequently Mrs Hudson bought the car from the crook. The crook disappeared. Then Shogun Finance, who had predictably never been paid, found Mrs Hudson and sued to retrieve the car. A bare majority in the House of Lords held that to protect the certainty of commercial dealings through a signed document, the contract between the finance company and the crook was void (the same consequence as if there had never been any offer mirrored by an acceptance). They had only ever intended to contract with Mr Patel. And because nobody can convey property they do not have (nemo dat quod non habet) Mrs Hudson never acquired legitimate title to the car from the crook and had to give back the car. The minority held that this situation should follow ordinary law of misrepresentation, and should mean that the right of the finance company to rescind the contract would be barred by the intervention of Mrs Hudson's rights as a bona fide third party purchaser, just like all of Europe, the United States, and previous decisions of the Court of Appeal suggest. However, because of the majority's decision this special category of "mistake about identity" cases remains a general exception to the English law on misrepresentation.
Duress and undue influence
While the law on disclosure and misrepresentation aims to make contracting parties informed (or not disinformed), the law also says agreements may be avoided when, in a very general sense, a person's free will was impaired. Complete exercise of "free will" is rare for most people, because they make choices within a constrained range of alternatives. The law still holds people to nearly all contracts (if consumer, employment, tenancy, etc. legislation is not activated) except where someone was under duress, unduly influenced or exploited while in a vulnerable position. Like misrepresentation, the victim may avoid the contract, and the parties restore their property to reverse unjust enrichment, subject to the victim's claim for damages, so long as none of the four equitable bars to rescission lie (i.e. no excessive lapse of time, affirmation of the contract, intervention of an innocent third party's rights and counter-restitution is possible). The most straight forward claim, for duress, involves illegitimate threats. The common law long allowed a claim if duress was of a physical nature. So long as a threat is just one of the reasons a person enters an agreement, even if not the main reason, the agreement may be avoided. Only late in the 20th century was escape allowed if the threat involved illegitimate economic harm. A threat is always "illegitimate" if it is to do an unlawful act, such as breaking a contract knowing non-payment may push someone out of business. However, threatening to do a lawful act will usually not be illegitimate. In Pao On v Lau Yiu Long the Pao family threatened to not complete a share swap deal, aimed at selling their company's building, unless the Lau family agreed to change a part of the proposed agreement to guarantee the Paos would receive rises in the swapped shares' prices on repurchase. The Laus signed the guarantee agreement after this threat, and then claimed it was not binding. But the Privy Council advised their signature was only a result of "commercial pressure", not economic duress. The Laus' considered the situation before signing, and did not behave like someone under duress, so there was no coercion amounting to a vitiation of consent. However, contrasting to cases involving business parties, the threat to do a lawful act will probably be duress if used against a vulnerable person. An obvious case involving "lawful act duress" is blackmail. The blackmailer has to justify, not doing the lawful act they threaten, but against a person highly vulnerable to them, the demand of money.
Parallel to the slow development of common law duress, the courts of equity allowed escape from a contract if any form of undue influence was used against a contracting party. "Actual undue influence" is now essentially the same thing as duress in its wider form. In these "class 1" cases, a claimant proves they were actually put under undue influence. Most relevant are the cases on "presumed undue influence", of which there are two sub-classes. "Class 2A" cases involve someone being in a pre-defined relation of trust and confidence with another, before which they enter a very disadvantageous transaction. In Allcard v Skinner, Miss Allcard joined a Christian sect, the "Protestant Sisters of the Poor", run by her spiritual adviser, Miss Skinner. After taking vows of poverty and obedience she gave the sect almost all her property. Lindley LJ held that if she had not been barred from the claim by letting 6 years lapse, it could be presumed that Miss Allcard was unduly influenced and she would have been able to rescind the transfer. Other class 2A relationships include doctor and patient, parent and child, solicitor and client, or any fiduciary relation (but not wife and husband). Where the relation does not fall into one of these, it stands with "class 2B" cases. Here, a claimant may first prove that there was in fact a strong relation of trust and confidence. If that is done, and there is a disadvantageous transaction, it will be presumed to result from undue influence. It will then be up to the recipient of the property to rebut the presumption. This takes on greatest significance in cases involving banks typically lending money to a husband for his business, and securing a mortgage over the husband and wife's jointly owned home. Significant problems arose, particularly after the early 1990s housing, stock market and currency crashes, where the husband's business failed, the bank attempted to repossess the house, and the wife claimed she never understood the implications of the mortgage or was pressured into it. Even though a bank may have played no illegitimate role, if it had "constructive notice" of undue influence (i.e. if it was aware that something was potentially wrong) the bank would lose its security and could not repossess the house. In Royal Bank of Scotland plc v Etridge (No 2) the House of Lords decided that in such situations a bank should ensure that the spouse has been independently advised by a solicitor, who in turn confirms in writing there is no question of undue influence, before giving out a loan.
As opposed to duress and actual undue influence, where illegitimate pressure is applied, or presumed undue influence which depends on a relationship of trust and confidence being abused, further cases allow a vulnerable person to avoid an agreement merely on the basis that they were vulnerable and exploited. In The Medina the Court of Appeal found that a group of pilgrims shipwrecked on a rock in the Red Sea did not need to pay £4000 they promised to a rescue ship, because the "rescuers" had exploited the pilgrims vulnerable position. To prevent unjust enrichment, the Court substituted an award of £1800. Similarly, in Cresswell v Potter, Ms Cresswell conveyed her ex-husband her share of their joint property in return for release from mortgage repayments, later making him £1400 profit. Because Potter took advantage of Ms Creswell's ignorance of property transactions, Megarry J held the agreement was voidable. One potential exception to this pattern, and now very heavily restricted, is the defence of "non est factum", which originally applied in favour of illiterate people in the 19th century allowed a person to have a signed contract declared void if it is radically different from what was envisaged. In Lloyds Bank Ltd v Bundy, Lord Denning MR proposed it was time that all cases be placed into one unified doctrine of "inequality of bargaining power". This would have allowed escape from an agreement if without independent advice one person's ability to bargain for better terms had been heavily impaired, and would have essentially given courts broader scope to change contracts to the advantage of weaker parties. The idea of a general unified doctrine was disapproved by some members of the House of Lords from 1979. However, specific legislation, such as the Consumer Credit Act 1974, the Landlord and Tenant Act 1985, or the Employment Rights Act 1996 creates targeted rights for contracting parties who lack bargaining power, in the same way specific legislation circumscribes a duty of disclosure and good faith. Thus, just as there is no unified theory of bargaining power, a unified doctrine of freedom of contract was dismantled long ago where the parties are not making commercial deals in the course of business.
In three main situations, English law allows people who lack legal capacity to contract to escape from enforcement of agreements and recover property that was conveyed, to reverse unjust enrichment. First, a person may be too young to be bound by large or onerous contracts. Minors, under 18 years, can bind themselves to contracts for "necessaries" to pay a reasonable price, but only unusual contracts, such as for eleven luxury waistcoats will not be deemed "necessaries". While the adult contracting party is bound, the minor has the option to rescind the contract, so long as one of the four equitable bars (lapse of time, affirmation, third party rights, counter-restitution possible) is not present. Second, people who are mentally incapacitated, for instance because they are sectioned under the Mental Health Act 1983 or they are completely intoxicated, are in principle bound to agreements when the other person could not or did not know they lacked mental capacity. But if the other person did know or should have known, then the mentally incapacitated individual may no longer have agreements for non-necessaries enforced upon them. Third, companies can generally bind themselves to any agreement, even though many (particularly older) companies have a limited range of objects that their members (in most companies this means shareholders) have consented that the business is for. Under the Companies Act 2006 sections 39 and 40, if a third party contracting with the company in bad faith takes advantage of a director or officer to procure an agreement, that contract will be wholly void. This is a high threshold, and in practice no longer relevant, particularly since 2006 companies may elect to have unrestricted objects. It is more likely that a contract ceases to be enforceable because, as a matter of the law of agency the third party should have reasonably known that the person contracting lacked authority to enter an agreement. In this situation a contract is voidable at the instance of the company, and could only be enforced against the (probably less solvent) employee.
In a fourth case, the consequences of incapacity are more drastic. Although the Crown Proceedings Act 1947 made it possible for the government or emanations of the state to be sued on contracts in the same way as a normal individual, where statute confers power on a public body to do certain acts, actions by representatives beyond that power will be ultra vires and void. The result is the same as it was for companies before reform in 1989, so that whole chains of agreements could be declared as non-existent.
- Law of obligations, tort, unjust enrichment and trusts
- Economic tort, Lumley v Gye (1853) 2 El & Bl 216, tort of interference with a contract
- Assumption of responsibility and pure economic loss
- Freedom of contract and regulation
- Bargaining power and inequality of bargaining power
- Will theory, promise
- "Promise" in the Stanford Encyclopedia of Philosophy
- Arthur Linton Corbin
- Adverse selection, moral hazard, information asymmetry
- Complete contract and default rule
- Agency cost, principal–agent problem
- Specific contracts: Agency. Arbitration clauses. Bailment. Bills of exchange and banking. Building contracts. Carriage by air. Carriage by land. Construction contracts. Credit and security. Employment. Gaming and wagering. Insurance. Restrictive agreements and covenants. Sale of goods. Suretyship.
- Unidroit Principles of International Commercial Contracts of 2004 (text and commentary)
- Principles of European Contract Law of 2003
- Uniform Commercial Code of 1952
- Restatement (Second) of Contracts of 1979
- South African contract law
- US contract law
- German contract law
- French contract law
- Canadian contract law
- Australian contract law
- UK commercial law
- UK company law
- UK labour law
- The Judicial Committee of the Privy Council decided cases on appeal from the Australian courts until 1985, from Canada until 1959, from India until 1948.
- See further Plato, The Laws, Book 11, §23, Contracts. B Nicholas, An Introduction to Roman Law (Clarendon 1963) 165-193
- R Glanvill, Tractatus de legibus et consuetudinibus regni Angliae (1188) 216 ff
- Rattlesdene v Grunestone (1317) Year Books 10 Edw II, Selden Society vol 54
- Bukton v Tounesende (1348) Baker & Milsom 358
- See Statute of Gloucester 1278
- Magna Carta 1215 §41
- HS Barker, 'The Rise of the Lex Mercatoria and Its Absorption by the Common Law of England' (1916-1917) 5 Kentucky Law Journal 20, 24
- e.g. Dyer’s case (1414) 2 Hen. V, fol. 5, pl. 26
- Watkins’ or Wykes’ case (1425) Baker & Milsom 380, 383, where a man had promised to build a mill, but had failed, per Martin J, 383, ‘if this action should be maintained… then a man would have an action of trespass for every broken covenant in the world.’
- (1442) Baker & Milsom 390
- (1602) 76 ER 1074
- e.g. D Ibbetson, 'Sixteenth Century Contract Law: Slade's Case in Context' (1984) 4(3) Oxford Journal of Legal Studies 295, 296
- See further, AWB Simpson, A History of the Common Law of Contract: the Rise of the Action of Assumpsit (1987)
- See further, JH Baker, ‘New Light on Slade's Case’ (1971) 29 Cambridge Law Journal 51
- (1600) Cro Eliz 756
- In the popular consciousness, see Christopher Marlowe, The Tragicall History of the Life and Death of Doctor Faustus (1604)
- e.g. Lethulier's Case (1692) 2 Salk 443, "we take notice of the laws of merchants that are general, not of those that are particular.
- Carter v Boehm (1766) 3 Burr 1905
- Pillans v Van Mierop (1765) 3 Burr 1663
- Luke v Lyde (1759) 97 Eng Rep 614, 618; (1759) 2 Burr 882, 887
- HJS Maine, Ancient Law (1861) ch 6. This classic interpretation, however, is troubled by the absence of any historical period where any employment relationship was not heavily regulated by statute, even in the 19th century. See for example the Master and Servant Acts.
- R Browning, Pied Piper of Hamelin (1842) XV
- JS Mill, Principles of Political Economy (1848) Book V, ch 1, §2 and ch 11
- (1875) 19 Eq 462, 465
- Supreme Court of Judicature Act 1873 s 25(11)
- Indian Contract Act 1872 (c 9)
- Falcke v Scottish Imperial Insurance Co (1886) 34 Ch 234
- This took place from the Second Reform Act 1867, the Representation of the People Act 1884, male suffrage with the RPA 1918, equal ages for men and women to vote from RPA 1928.
- Principles of European Contract Law of 2002
- See generally PS Atiyah, The Rise and Fall of Freedom of Contract (Oxford 1979), MJ Horwitz, 'The historical foundations of modern contract law' (1974) 87(5) Harvard Law Review 917 and AWB Simpson, 'The Horwitz Thesis and the History of Contracts' (1979) 46(3) The University of Chicago Law Review 533
- See generally, George Mitchell (Chesterhall) Ltd v Finney Lock Seeds Ltd  EWCA Civ 5, per Lord Denning MR, 'the freedom was all on the side of the big concern which had the use of the printing press. No freedom for the little man who took the ticket or order form or invoice. The big concern said, "Take it or leave it." The little man had no option but to take it.'
- F Kessler, 'Contracts of Adhesion—Some Thoughts About Freedom of Contract (1943) 43(5) Columbia Law Review 629
- e.g. Olley v Marlborough Court  1 KB 532
- Trade Boards Act 1909 and the National Minimum Wage Act 1998
- Industrial Relations Act 1971 and Employment Rights Act 1996
- Trade Disputes Act 1906 and the Trade Union and Labour Relations (Consolidation) Act 1992
- Landlord and Tenant Act 1985
- See G Treitel, The Law of Contract (2003) 1, ‘A contract is an agreement giving rise to obligations which are enforced or recognised by law.’ J Beatson, Anson’s Law of Contract (OUP 2002) 73, ‘English law does not regard a bare promise or agreement as legally enforceable but recognises only two kinds of contract, the contract made by deed, and the simple contract. A contract made by deed derives its validity neither from the fact of the agreement nor because it is an exchange but solely from the form in which it is expressed. A simple contract as a general rule need not be made in any special form, but requires the presence of consideration which… broadly means that something must be given in exchange for a promise.’ American Law Institute, Restatement (2d) of Contracts, ‘A contract is a promise or set of promises for the breach of which the law gives a remedy, or the performance of which the law in some way recognises as a duty.’
- See Smith v Hughes (1871) LR 6 QB 597, per Blackburn J. See also, Williams v. Walker-Thomas Furniture Co., 350 F 2d 445 (CA DC 1965) per Wright J using the phrase "objective manifestation of consent".
- e.g. Law of Property (Miscellaneous Provisions) Act 1989 s 2(1)
- See Fisher v Bell  1 QB 394 and Pharmaceutical Society v Boots Cash Chemists  EWCA Civ 6, both of which appeared to turn more on whether a criminal statute should create liability for a shopkeeper, at a time when a literal approach to interpretation of legislation was followed.
- Partridge v Crittenden  1 WLR 1204
- Sale of Goods Act 1979 s 57(2)
- Blackpool and Fylde Aero Club v Blackpool BC  EWCA Civ 13
- See Barry v Davies  EWCA Civ 235, and the old case Payne v Cave (1789) 3 TR 148.
- e.g. Thornton v Shoe Lane Parking Ltd  2 QB 163
- See Carlill v Carbolic Smoke Ball Co  EWCA Civ 1; Chapelton v Barry Urban District Council  1 KB 532.
- See the Consumer Protection from Unfair Trading Regulations 2008 rr 5, 8-18 (SI 2008/1277). This is secondary legislation, passed under the Trade Descriptions Act 1968.
- See the Equality Act 2010. See also Constantine v Imperial Hotels Ltd  KB 693 and Lefkowitz v Great Minneapolis Surplus Stores, 86 NW 2d 689 (1957)
- Entores Ltd v Miles Far East Corporation  EWCA Civ 3
- See also, The Brimnes  EWCA Civ 15
- The general rule was confirmed in Brinkibon Ltd v Stahag Stahl und Stahlwarenhandelsgesellschaft mbH  2 AC 34. See also, S Hill, ‘Flogging a Dead Horse - The Postal Acceptance Rule and Email’ (2001) 17 Journal of Contract Law 151, arguing that email is the same as telex and fax.
- See Adams v Lindsell  EWHC KB J59 and S Gardner, "Trashing with Trollope: A Deconstruction of the Postal Rules in Contract" (1992) 12 Oxford Journal of Legal Studies 170. Historically a post officer was the agent of the recipient of letter, who would often pay for receiving it. Giving a letter to the postman or putting it in the postbox was construed as communicating acceptance at the time of posting.
- See the Principles of European Contract Law art 2:205. Common law countries mostly inherited the same rule from England, and it found its way into the United Nations Convention on Contracts for the International Sale of Goods arts 16(1) and 18(2)
- See Henthorn v Fraser  2 Ch 27 and Holwell Securities Ltd v Hughes  1 WLR 155. See also Bramwell LJ's dissenting judgment in The Household Fire and Carriage Accident Insurance Company (Limited) v Grant (1878-79) LR 4 Ex D 216.
- nb Manchester Diocesan Council for Education v Commercial and General Investments Ltd  3 All ER 1593, holding a prescribed mode need not necessarily mean it is the only mode of acceptance.
- See Felthouse v Bindley
- (1877) 2 AC 666
-  2 QB 256
- See Williams v Carwardine  EWHC KB J44 and Gibbons v Proctor (1891) 64 LT 594. The Australia case, R v Clarke (1927) 40 CLR 227 opined that reliance on the offer is also necessary, however this appears to go further than what English law requires. See P Mitchell and J Phillips, 'The Contractual Nexus: Is Reliance Essential?' (2002) 22(1) Oxford Journal of Legal Studies 115
- See Errington v Errington  1 KB 290 and Daulia Ltd v Four Millbank Nominees Ltd  Ch 231
- Byrne v Van Tienhoven (1880) 5 CPD 344
- Dickinson v Dodds (1876) 2 Ch D 463
- Stevenson, Jacques & Co v McLean (1880) 5 QBD 346
- (1840) 3 Beav 334
- The Satanita  AC 59
- e.g. Lord Wilberforce in The Eurymedon  AC 154, "English law, having committed itself to a rather technical and schematic doctrine of contract, in application takes a practical approach, often at the cost of forcing the facts to fit uneasily into the market slots of offer, acceptance and consideration."
-  EWCA Civ 9
-  UKHL 6
-  3 All ER 566
- cf Smith v Hughes (1871) LR 6 QB 597, where it was held that even though an oats dealer knew that a racehorse trainer was making a mistake about the kind of oats he was buying, the dealer had no obligation to inform him otherwise and the trainer was bound to his agreement.
-  EWHC Exch J19
- See British Steel Corp v Cleveland Bridge and Engineering Co Ltd  1 All ER 504
- Hillas & Co Ltd v Arcos Ltd  UKHL 2
-  1 AC 251
- nb Sale of Goods Act 1979 s 8(2) stipulates that where a contract for goods is silent on price, a reasonable price must be paid. See also May and Butcher Ltd v R  UKHL 2
-  EWCA Civ 274
- Walford v Miles  2 AC 128, overturning a decision of Bingham LJ in the Court of Appeal.
-  EWCA Civ 4
-  2 KB 571
- Jones v Padavatton  EWCA Civ 4
- Merritt v Merritt  EWCA Civ 6
- Parker v Clark  1 WLR 286
- See Esso Petroleum Co Ltd v Customs and Excise  UKHL 4
- See Rose & Frank Co v JR Crompton & Bros Ltd  UKHL 2, Lord Atkin, however, emphasising that it was a case where "business people" were regulating their "business relations", rather than a situation involving two parties with an imbalance of bargaining power.
- See Trade Union and Labour Relations (Consolidation) Act 1992 s 179. This follows an old theory popularised by Otto Kahn-Freund of the best kind of industrial relations being one of "collective laissez-faire".
- See L Fuller, ‘Consideration and Form’ (1941) 41 Columbia Law Review 799
- Law of Property (Miscellaneous Provisions) Act 1989 s 2(1)
- Law of Property Act 1925 ss 52 and 54(2) require that such leases are made by deed.
- Consumer Credit Act 1974 ss 60 and 61
- Bills of Exchange Act 1882 s 3(1)
- See Statute of Frauds 1677 s 4 and Actionstrength Ltd v International Glass Engineering In.Gl.EN.SpA  UKHL 17, holding that while this requirement may be undesirable, it could not be circumvented through estoppel.
- Law of Property (Miscellaneous Provisions) Act 1989 s 1
- See E Peel, Treitel: The Law of Contract (12th edn 2007) ch 3
- See Thomas v Thomas (1842) 2 QB 851, 859, and Currie v Misa  LR 10 Ex 153, Lush LJ, "A valuable consideration, in the sense of the law, may consist either in some right, interest, profit or benefit accruing to the one party, or some forbearance, detriment, loss or responsibility given, suffered or undertaken by the other."
- Bret v JS (1600) Cro Eliz 756 and White v Bluett (1853) 23 LJ Ex 36
- See Shadwell v Shadwell (1860) 9 CB (NS) 159 and Pao On v Lau Yiu Long  AC 614.
- Dunlop Pneumatic Tyre Co Ltd v Selfridge Ltd  AC 847, 855, approving the definition of F Pollock, Principles of Contract (13th edn) 113
- See AT von Mehren, ‘Civil law analogues to consideration: an exercise in comparative analysis’ (1959) 72(4) Harvard Law Review 1009
- e.g. K Llewellyn, 'What Price Contract?. An Essay in Perspective' (1931) 40 Yale Law Journal 741
- (1937) Cmd 5449
- See E Peel, Treitel: The Law of Contract (12th edn 2007) 3-169
-  EWHC KB J58
- Chappell & Co Ltd v Nestle Co Ltd  AC 87, per Lord Somervell
- c.f. UK insolvency law, IA 1986 s 238 allows the court to declare a contract by an insolvent company void if it was at an undervalue to protect the general body of creditors.
- e.g. National Minimum Wage Act 1998
- e.g. Autoclenz Ltd v Belcher  UKSC 41
- See Eastwood v Kenyon (1840) 11 Ad&E 438
- See Lampleigh v Brathwait (1615) Hob 105, and also the American case Webb v McGowin, 168 SO 196 (1935)
- e.g. Stilk v Myrick  EWHC KB J58
-  EWCA Civ 5
- This essentially followed the earlier judgment of Denning LJ in Ward v Byham  1 WLR 496
-  UKHL 1. This followed Pinnel’s case (1602) 5 Co Rep 117a, from an age where, without any modern bankruptcy law, there was great concern that crafty debtors might hold their creditors to ransom.
- See also D & C Builders v Rees  2 QB 617
-  EWCA Civ 8
- See the Supreme Court of Judicature Act 1875
- (1877) 2 App Cas 439
-  KB 130
-  EWCA Civ 1329. This decision essentially copies the obiter dicta of Lord Denning MR in D & C Builders v Rees  2 QB 617
- e.g. Combe v Combe  EWCA Civ 7
- Walton Stores (Interstate) Ltd v Maher (1988) 164 CLR 387
- See, Crabb v Arun District Council  1 Ch 170. See also Yeoman’s Row Management Ltd v Cobbe  UKHL 55
- e.g. PS Atiyah, 'Consideration: A Restatement' in Essays on Contract (OUP, 1986) 195
-  EWHC QB J57
- (1996) Report No 242, 5.10. See A Burrows, 'The Contracts (Rights of Third Parties) Act 1999 and its implications for commercial contracts'  LMCLQ 540, but also, heaping criticism on the reforms, R Stevens, ‘The Contracts (Rights of Third Parties) Act 1999’ (2004) 120 LQR 292
- CRTPA 1999 ss 1(1)(a), 1(1)(b) and 1(2) respectively.
- See Nisshin Shipping Co Ltd v Cleaves & Co Ltd  1 Lloyd’s Rep 38, 
- CRTPA 1999 ss 1(5) and 1(6)
- CRTPA 1999 s 2
- Smith and Snipes Hall Farm Ltd v River Douglas Catchment Board  2 KB 500
-  UKHL 2
-  UKHL 4
-  UKPC 1
- See The Mahkutai  AC 650, 664-5, where Lord Goff opined that it was "perhaps inevitable" that there should develop "a fully-fledged exception to the doctrine of privity of contract, thus escaping from all the technicalities with which courts are now faced in English law."
- One case that would not be decided differently in its result is Dunlop Pneumatic Tyre Co Ltd v Selfridge & Co Ltd  AC 847, which involved the anti-competitive practice of resale price maintenance.
- CRTPA 1999 s 4
-  EWCA Civ 12
- UKHL 11
- See The Albazero  AC 774, 847 per Lord Diplock and Alfred McAlpine Construction Ltd v Panatown  1 AC 518, 538 per Lord Goff
- See D&F Estates Ltd v Church Commissioners for England and Wales  AC 177 and Linden Gardens Trust Ltd v Lenesta Sludge Disposals  UKHL 4. Contrast Dutton v Bognor Regis Building Co Ltd  1 QB 373, where Lord Denning MR found no difficulty in granting a transmissible warranty of fitness for a building, but overruled by the House of Lords in D&F Estates. See also Junior Books Limited v Veitchi Company Limited  UKHL 4
- e.g. Lord Jessel MR in Printing and Numerical Registering Co v Sampson (1875) 19 Eq 462, 465
- See George Mitchell (Chesterhall) Ltd v Finney Lock Seeds Ltd  EWCA Civ 5
- See in particular George Mitchell (Chesterhall) Ltd v Finney Lock Seeds Ltd  QB 284 and Johnson v Unisys Ltd  UKHL 13
- Heilbut, Symons & Co v Buckleton  UKHL 2,  AC 30, 50-1, Lord Moulton, ‘The intention of the parties can only be deduced from the totality of the evidence.’
-  1 WLR 370
-  EWCA Civ 2
- (1877) 2 CPD 416
- See Allen v Pink (1838) 4 M&W 140, on the parol evidence "rule". The better view appears to be that this is not a rule, but a presumption: KW Wedderburn, ‘Collateral Contract’  CLJ 58. See also City and Westminster Properties (1934) Ltd v Mudd  Ch 129 on collateral contracts. In California, the rule has been circumvented, see Pacific Gas & Elec. Co. v. G. W. Thomas Drayage Co., 69 Cal. 2d 33 (1968)
- L'Estrange v F Graucob Ltd  2 KB 394, the purchaser of a faulty cigarette machine could not get a refund, because she had signed a document exempting the seller for any liability if it did not work. However, today this would be found unfair under UCTA 1977 ss 3, 6 and Sch 2
- See Grogan v Robin Meredith Plant Hire  CLC 1127 and Gallie v Lee  UKHL 5,  AC 1004.
- Autoclenz Ltd v Belcher  UKSC 41
- See the Unfair Terms in Consumer Contracts Directive 93/13/EEC and UTCCR 1999
- e.g. Bankway Properties Ltd v Pensfold-Dunsford  EWCA Civ 528, 
-  EWCA Civ 3,  1 WLR 461. See also Olley v Marlborough Court  1 KB 532, where Denning LJ held a notice behind a door to a washbasin in a hotel guest's room was not prominent enough to exclude the hotel's liability for failing to prevent a thief stealing Mrs Olley's fur coat.
-  2 QB 163
-  EWCA Civ 6,  QB 433
-  EWCA Civ 1279
-  2 QB 71
-  EWCA Civ 6,  QB 303
- See also Henry Kendall Ltd v William Lillico Ltd  2 AC 31 and Scheps v Fine Art Logistics Ltd  EWHC 541
-  UKHL 28,  1 WLR 896
- e.g., Lovell & Christmas Ltd v Wall (1911) 104 LT 85, Lord Cozens-Hardy MR stated, "it is the duty of the court… to construe the document according to the ordinary grammatical meaning of the words used therein."
-  AC 192
- See Curtis v Chemical Cleaning and Dyeing Co  1 KB 805, Harbutt’s Plasticine Ltd v Wayne Tank Pump Co Ltd  1 QB 47 and Photo Production Ltd v Securicor Transport Ltd  AC 827
- See also Hollier v Rambler Motors Ltd  2 QB 71, where Salmon LJ held that even if the clause excluding liability for fire had been incorporated through a course of dealings, because a reasonable person would not believe it referred to the business' negligence, it would be construed to not cover that.
- See George Mitchell (Chesterhall) Ltd v Finney Lock Seeds Ltd  QB 284, and also Ailsa Craig Fishing Co Ltd v Malvern Fishing Co Ltd  UKHL 12,  1 WLR 964, Lord Fraser notes Lord Morton's principles do not apply fully to limitation as opposed to exclusion clauses.
- Lord Wilberforce in Rearden Smith Lines Ltd v Hansen Tangan  1 WLR 989 was taken as inspiration by Lord Hoffmann, a judgment passed as it was clear unfair terms legislation was to be enacted.
- See HIH Casualty and General Insurance Ltd v Chase Manhattan Bank  UKHL 6. This position reflects most civil law countries since the 19th century, e.g. in Germany BGB §133 where "the actual will of the contracting party, not the literal sense of words, is to be determined"
- Chartbrook Ltd v Persimmon Homes Ltd  UKHL 38
- e.g. Lord Steyn, 'Contract Law: Fulfilling the Reasonable Expectations of Honest Men' (1997) 113 LQR 433
- Oceanbulk Shipping & Trading SA v TMT Asia Ltd  UKSC 44
- See Frederick E Rose (London) Ltd v William H Pim Jnr & Co Ltd  2 QB 450
- Attorney General of Belize v Belize Telecom Ltd  UKPC 10
- However where contracts are avoidable for lack of good faith, misrepresentation, duress or undue influence, or lack of capacity, and an order to reverse unjust enrichment is imposed, the same functional result may be reached.
- For instance, the Model Articles for companies incorporated under the Companies Act 2006 contain many such default rules, while the terms of the Employment Rights Act 1996 cannot be contracted out of.
- Equitable Life Assurance Society v Hyman  UKHL 39,  1 AC 408, 459. The same test is used for implying contracts, Baird Textiles Holdings Ltd v Marks & Spencer plc  EWCA Civ 274,  1 All ER (Comm) 737.
-  1 AC 408, 459. See also Paragon Finance plc v Nash  1 WLR 685 and AG of Belize v Belize Telecom Ltd  UKPC 10, -
- The Moorcock (1889) 14 PD 64 and Southern Foundries (1926) Ltd v Shirlaw  AC 701
-  UKPC 10
- Cunliffe-Owen v Teather & Greenwood  1 WLR 1421, per Ungoed Thomas LJ. See also Hutton v Warren  EWHC Exch J61
-  1 AC 408
-  AC 329. The judgment of Lord Denning MR in the Court of Appeal,  QB 319, is notable for asserting that the judiciary should be able to imply terms whenever it is reasonable.
- See Scally v Southern Health and Social Services Board  1 AC 294, cf Crossley v Faithful & Gould Holdings Ltd  EWCA Civ 293
- e.g. Wilson v Racher  ICR 428
-  AC 20
-  QB 333
-  QB 333, respectively Leggatt LJ at 347-349, Sir Nicholas Browne-Wilkinson VC at 349-352, and Stuart Smith LJ at 340-347.
- See EC Regulation 261/2004
- See EU Directive 2000/31/EC
- See SI 1999/2083, implementing the EU Unfair Consumer Contract Terms Directive 93/13/EC
- Law Commission, Unfair Terms in Contracts (2005) Law Com 292
- UCTA 1977 s 11(4)(b), Sch 2(a) and 2(c). Although Sch 2 stipulates that its criteria are only for ss 6(3), 7(3)-(4) and 20-21, the courts say these criteria are relevant for the rest of the Act, per Clarke J in Woodman v Photo Trade Processing Ltd (7 May 1981) Unreported, Exeter County Court, and R Lawson (1981) 131 NLJ 933.
-  EWCA Civ 5,  QB 284 and  2 AC 803
- e.g. in Timeload Ltd v BT plc  EMLR 459 Sir Thomas Bingham MR held it was arguable that BT's standard term that it could terminate a business customer's phone connection "at any time" on one month's notice was unreasonable because it did not require that BT gave any kind of good reason.
-  UKHL 1,  1 AC 831
- See R&B Customs Brokers Ltd v United Dominions Trust Ltd  1 WLR 321, where under UCTA 1977 the Court of Appeal held that
-  UKHL 52
-  UKSC 6
-  EWCA 116
-  UKSC 6, , per Lord Mance.
- The Unfair Contract Terms Bill (2005) Law Com 292, in clause 4(5) says price "does not include any amount, payment of which would be incidental or ancillary to the main purpose of the contract".
-  1 QB 673
- Arguably, however, he could get back the cost of some building materials in a restitutionary claim if the materials had (unlike the facts) been freely accepted. On the facts they were not. See Goff and Jones, 441-2.
-  EWCA Civ 5
-  EWCA Civ 6,  2 All ER 176. See also, Jacob & Youngs v. Kent, 230 NY 239 (1921)
- Anomalously, given that employment contracts are to be intellectually segregated from the law on general contracts, Gisda Cyf v Barratt  UKSC 41, , the doctrine against payment for insubstantial performance was deployed in the 1980s against trade union members who through industrial action worked 3 hours less than their 37 hour week, or refused to answer telephone enquiries from their employers but were otherwise at work. Miles v Wakefield Borough Council  AC 539 and Wilusynski v London Borough of Tower Hamlets  ICR 493. This is reminiscent of Cutter v Powell  EWHC KB J 13, where a widow could recover no wages on behalf of her husband who died aboard a ship bound back from Jamaica but who had given service for most of the voyage.
-  AC 413
- See Workers Trust v Dojap Investments Ltd  UKPC 7,  2 All ER 370, where a 30% deposit had to be given up.
-  UKPC 5,  AC 514
- Dunlop Tyre Co Ltd v New Garage Co Ltd  UKHL 1
-  EWCA Civ 963
- See Office of Fair Trading v Abbey National plc  EWHC 875 (Comm),  All ER (D) 349
- (SI 1999/2083) Sch 2(1)(d)-(e)
-  EWHC QB J1
- Paradine v Jane  EWHC KB J5, (1647) Aleyn 26
- e.g. Fibrosa Spoka Akcjna v Fairbairn Lawson Combe Barbour Ltd  AC 32
- See Krell v Henry  2 KB 740, but contrast Herne Bay Steam Boat Co v Hutton  2 KB 683, which is typically said to be distinct on the basis that the claimant could still substantially enjoy the boat trip anyway.
-  UKHL 3,  AC 696. Also, see Maritime National Fish Ltd v Ocean Trawlers Ltd  UKPC 1,  AC 524, the frustrating event must be unforeseeable.
- e.g. Joseph Constantine Steamship Line Ltd v Imperial Smelting Corporation Ltd  AC 154
- Also known as J Lauritzen A/S v Wijsmuller BV  EWCA Civ 6,  1 Lloyd’s Rep 1
- See Appleby v Myers (1867) LR 2 CP 651, ameliorated by Fibrosa Spoka Akcjna v Fairbairn Lawson Combe Barbour Ltd  UKHL 4,  AC 32, where if consideration failed totally, money could be recouped.
- LRFCA 1943 s 1(2) refers to money, and s 1(3) refers to non-monetary benefits.
- See BP Exploration Co (Libya) v Hunt (No 2)  1 WLR 783;  1 All ER 925, per Lawton LJ. Goff J in the High Court would have held that an objective assessment of unjust enrichment should guide the court, with less discretion. See also Gamerco SA v ICM Fair Warning Ltd  EWHC QB 1.
-  UKHL 2
-  EWCA Civ 1407
- See Amalgamated Investment and Property Co Ltd v John Walker & Sons Ltd  1 WLR 164
-  UKHL J3, (1856) 5 HLC 673
- (1867) LR 2 HL 149
-  HCA 79, (1951) 84 CLR 377
-  UKHL 2,  AC 161
-  1 KB 671
- (1876) 1 QBD 183
- See this language being used in Photo Production Ltd v Securicor Transport Ltd  UKHL 2 by Lord Diplock, probably inspired John Austin, The Province of Jurisprudence Determined (1832)
- See Hochster v De La Tour  EWHC QB J72, White and Carter (Councils) Ltd v McGregor  UKHL 5 and The Alaskan Trader  1 All ER 129
- See Reardon Smith Line Ltd v Yngvar Hansen-Tangen and Sanko SS & Co Ltd  3 All ER 513
- See SGA 1979 s 15A, added by the Sale of Goods Act 1994 s 4(1)
- See The Hansa Nord or Cehave NV v Bremer Handelsgesellschaft mbH  QB 44
-  UKHL 2,  AC 235
- See Rice (t/a Garden Guardian) v Great Yarmouth Borough Council (2001) 3 LGLR 4,  All ER (D) 902, where a contract parks maintainer successfully claimed wrongful termination even though he had provably defaulted on some tasks.
-  UKHL 11,  2 All ER 513
-  UKHL 8.
-  EWCA Civ 8. Compare the privity case, Jackson v Horizon Holidays Ltd  1 WLR 1468, which held a husband could recover disappointment damages on behalf of his wife and children.
-  UKHL 49
- See Addis v Gramophone Co Ltd  UKHL 1,  AC 488 and Sutherland v Hatton  EWCA Civ 76
-  EWHC Exch J70
-  UKHL 48
- Also known as Banque Bruxelles Lambert SA v Eagle Star Insurance Co Ltd  UKHL 10,  AC 191
-  EWHC Exch J70. Compare the Uniform Commercial Code, 2-715, "Consequential damages... include any loss... which could not reasonably be prevented by cover or otherwise."
- See also The Heron II  UKHL 4,  1 AC 350 and H Parsons (Livestock) Ltd v Uttley Ingham & Company Ltd  EWCA Civ 13,  QB 791
- British Westinghouse Ltd v Underground Ltd  AC 673
- See Banco de Portugal v Waterlow  UKHL 1
- See the Law Reform (Contributory Negligence) Act 1945 ss 1 and 4
-  1 QB 60
- Note C & P Haulage v Middleton  EWCA Civ 5,  1 WLR 1461, where expenses of Mr Middleton's improvements to a property could not be recovered given that he did so of his own accord.
- See Johnson v Agnew  AC 367, and also Habton Farms v Nimmo  QB 1
- Experience Hendrix LLC v PPX Enterprises Inc  EWCA Civ 323
- Sky Petroleum v VIP Petroleum  1 WLR 576
- See Lumley v Wagner (1852) 64 ER 1209
- Patel v Ali  Ch 283
-  UKHL 17
- See Rookes v Barnard  AC 1129, which makes clear such damages are available for tort.
-  UKHL 45
-  1 WLR 798
- Compare Surrey CC v Bredero Homes Ltd  EWCA Civ 7, which was probably wrongly decided given the dicta in Blake.
-  EWCA Civ 323,  1 All ER (Comm) 830
- The Wall Street Crash and ensuing Great Depression was triggered in part by a failure to regulate the sale of shares to ensure transparency, as well as unequal power within corporations. See AA Berle and GC Means, The Modern Corporation and Private Property (1932)
- In the Financial crisis of 2007–08, this was derivatives, particularly collateralized debt obligations of mortgage-backed securities, and credit default swaps, whose value ultimately "derived" from people who were unable to pay off unfair mortgage agreements in the United States. See E Warren, ‘Product Safety Regulation as a Model for Financial Services Regulation’ (2008) 43(2) Journal of Consumer Affairs 452 and JC Coffee, ‘What Went Wrong? An Initial Inquiry into the Causes of the 2008 Financial Crisis’ (2009) 9(1) Journal of Corporate Law Studies 1
- See Redgrave v Hurd (1881) 20 Ch D 1 and Allcard v Skinner (1887) 36 Ch D 145
- See Hedley Byrne & Co Ltd v Heller & Partners Ltd  AC 465 and Misrepresentation Act 1967 s 2(1)
- Carter v Boehm (1766) 3 Burr 190
- (1766) 3 Burr 190
- (1878) 3 App Cas 1218
- See in particular the Financial Services and Markets Act 2000. Highly notably, credit derivatives were not regulated, and were argued as not apt for regulation in an influential and notorious opinion of Robin Potts QC to the International Swaps and Derivatives Association, Inc in 24 June 1997.
- e.g. Wilson v First County Trust Ltd (No 2)  UKHL 40
- With v O'Flanagan  Ch 575
- Kleinwort Benson Ltd v Lincoln City Council  2 AC 349, abolished a previous bar on claims for misrepresentation about law, a doctrine reminiscent of the maxim ignorantia juris non excusat.
- Gordon v Selico (1986) 18 HLR 219
- e.g. Smith v Land and House Property Corporation (1884) LR 28 Ch D 7 and Bisset v Wilkinson  AC 177
-  QB 801
- e.g. Leaf v International Galleries  2 KB 86
- e.g. Long v Lloyd  1 WLR 753
- e.g. Phillips v Brooks Ltd  2 KB 243
- In Smith New Court Securities Ltd v Scrimgeour Vickers (Asset Management) Ltd  2 BCLC 212, 221, Nourse LJ held that precise counter-restitution was necessary, but on appeal on a different point,  AC 254, 262, Lord Browne-Wilkinson thought it was not. Then in Government of Zanzibar v British Aerospace (Lancaster House) Ltd  1 WLR 2333 the High Court held that a contract for sale of a luxury jet could not be rescinded, despite misrepresentations about the plane's airworthiness, because the plane had already been repossessed by the Government of Zanzibar's finance company. Because they could not give the plane back, in specie rescission was barred, and the court went on to consider whether damages were available under MA 1967 s 2(2) given rescission was barred and held they were not.
-  EWCA Civ 4
- See Derry v Peek (1889) LR 14 App Cas 337 and East v Maurer  EWCA Civ 6
- See Law Reform Committee, Innocent Misrepresentation (1962) Cmnd 1782
-  UKHL 4
- See Wagon Mound (No 1)  UKPC 1, confirmed in Hughes v Lord Advocate  AC 837
-  EWCA Civ 12
- cf South Australia Asset Management Corpn v York Montague Ltd  AC 191, where the House of Lords held that a negligent surveyor was not liable for damages related to losses after a market fall of house prices.
- See William Sindall plc v Cambridgeshire County Council  EWCA Civ 14
- See Walker v Boyle  1 WLR 495
-  UKHL 62
- This follows the old House of Lords case, Cundy v Lindsay. The whole House agreed the result in Ingram v Little was wrong, and is overruled.
- See the Principles of European Contract Law, the Uniform Commercial Code and Lewis v Averay  EWCA Civ 4
- See C MacMillan, 'Mistake as to identity clarified?' (2004) 120 Law Quarterly Review 369
- See Barton v Armstrong  UKPC 2,  AC 104, where Mr Armstrong tried to "strong-arm" Mr Barton into paying him a large golden parachute to exit a business by getting his goons to make death threats to Barton's family. Even though Barton was tough, and would have probably done the payout regardless, he could avoid the agreement.
- See D & C Builders Ltd v Rees  EWCA Civ 3,  2 QB 617. Note that in UK labour law, concerning strikes, the threat to break a contract while in contemplation or furtherance of a trade dispute is a protected act under TULRCA 1992 s 219.
-  UKPC 2,  AC 614
- See Daniel v Drew  EWCA Civ 507,  WTLR 807, where the Court of Appeal held that a nephew who threatened his old Auntie Muriel with court proceedings if she did not reduce his rent as a beneficiary allowed was actual undue influence. This is the same as duress. Cf US Restatement (Second) of Contracts 1979 §176
- See R v Attorney General for England and Wales  UKPC 22,  EMLR 499
- See Barclays Bank plc v O'Brien  UKHL 6, where Lord Browne-Wilkinson set forth the class numbering.
- e.g. Johnson v Buttress (1936) 56 CLR 113
- This created an explosion of property and trusts litigation in cases such as Lloyds Bank plc v Rosset  UKHL 14 Abbey National Building Society v Cann  1 AC 56.
-  UKHL 44,  2 AC 773
- (1876) 2 PD 5
-  1 WLR 255
- cf Gallie v Lee  UKHL 5,  AC 1004, where an old lady who had broken her glasses was still bound to a contract in which she had conveyed her house away to her nephew's shady business partner, even though she had been deceived into thinking the document was merely for a gift to the nephew. Such cases were decided before statutory intervention was introduced to cut out all unfair terms, and the law on undue influence was tightened in favour of vulnerable people.
-  EWCA Civ 8
- For an example of the phrase, see S Webb and B Webb, Industrial Democracy (1897) and its subsequent endorsement in the preamble to the US labor law statute, the National Labor Relations Act of 1935.
- Pao On v Lau Yiu Long  UKPC 2,  AC 614 per Lord Scarman, agreements are not voidable simply because "they had been procured by an unfair use of a dominant bargaining position", and National Westminster Bank plc v Morgan  UKHL 2
- See further, Autoclenz Ltd v Belcher and Gisda Cyf v Barratt
- See Nash v Inman  2 KB 1 and the Sale of Goods Act 1979 s 3.
- See Hart v O'Connor  UKPC 1.
- PS Atiyah, An Introduction to the Law of Contract (Clarendon 2000)
- J Beatson, A Burrows and J Cartwright, Anson's Law of Contract (29th edn OUP 2010)
- H Collins, Contract Law in Context (4th edn CUP 2003)
- R Goode and E McKendrick, Goode on Commercial Law (4th edn Penguin) chs 3 and 4, 69-176
- E McKendrick, Contract Law (8th edn Palgrave 2009)
- E Peel and GH Treitel, Treitel on the Law of Contract (13th edn Sweet and Maxwell 2011)
- Cases and Materials
- A Burrows, A Casebook on Contract (3rd edn Hart 2011)
- E McKendrick, Contract Law: Text, Cases and Materials (OUP 2010)
- J Poole, Casebook on Contract Law (8th edn OUP 2006)
- PS Atiyah, The Rise and Fall of Freedom of Contract (Clarendon 1979)
- C Mitchell and P Mitchell (eds), Landmark Cases in the Law of Contract (Hart 2008)
- AWB Simpson, A History of the Common Law of Contract: the Rise of the Action of Assumpsit (1987)
- SA Smith, Contract Theory (Clarendon 2004)
- PS Atiyah, "Consideration: A Restatement" in Essays on Contract (OUP 1986) 195
- LL Fuller, "Consideration and Form" (1941) 41 Columbia Law Review 799
- F Kessler, "Contracts of Adhesion—Some Thoughts About Freedom of Contract" (1943) 43(5) Columbia Law Review 629
- S Gardner, "Trashing with Trollope: A Deconstruction of the Postal Rules in Contract" (1992) 12 Oxford Journal of Legal Studies 170
- S Hill, "Flogging a Dead Horse - The Postal Acceptance Rule and Email" (2001) 17 Journal of Contract Law 151
- MJ Horwitz, "The historical foundations of modern contract law" (1974) 87(5) Harvard Law Review 917
- K Llewellyn, "What Price Contract?. An Essay in Perspective" (1931) 40 Yale Law Journal 741
- AT von Mehren, "Civil law analogues to consideration: an exercise in comparative analysis" (1959) 72(4) Harvard Law Review 1009
- AWB Simpson, "The Horwitz Thesis and the History of Contracts" (1979) 46(3) The University of Chicago Law Review 533
- R Stevens, "The Contracts (Rights of Third Parties) Act 1999" (2004) 120 Law Quarterly Review 292
- J Steyn, "Contract Law: Fulfilling the Reasonable Expectations of Honest Men" (1997) 113 Law Quarterly Review 433
- H Wehberg, "Pacta Sunt Servanda" (1959) 53(4) The American Journal of International Law 775
- Law Revision Committee, Statute of Frauds and the Doctrine of Consideration (1937) Cmnd 5449
- Law Reform Committee, Innocent Misrepresentation (1962) Cmnd 1782
- Law Commission, Report (1986) Cmnd 9700
- Law Commission, Privity of Contract: Contracts for the Benefit of Third Parties (1996) Law Com 242
- Law Commission, Illegal Transactions: The Effect of Illegality on Contracts and Trusts (1999) Law Com 154
- Law Commission, Unfair Terms in Contracts (2005) Law Com 292
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