Thomas Robert Malthus
Thomas Robert Malthus
Portrait by John Linnell
|Born||13/14 February 1766|
Westcott, Surrey, England
|Died||23 December 1834 (aged 68)|
Bath, Somerset, England
|Alma mater||Jesus College, Cambridge|
|Contributions||Malthusian growth model|
In his 1798 book An Essay on the Principle of Population, Malthus observed that an increase in a nation's food production improved the well-being of the populace, but the improvement was temporary because it led to population growth, which in turn restored the original per capita production level. In other words, humans had a propensity to utilize abundance for population growth rather than for maintaining a high standard of living, a view that has become known as the "Malthusian trap" or the "Malthusian spectre". Populations had a tendency to grow until the lower class suffered hardship, want and greater susceptibility to famine and disease, a view that is sometimes referred to as a Malthusian catastrophe. Malthus wrote in opposition to the popular view in 18th-century Europe that saw society as improving and in principle as perfectible.
Malthus saw population growth as being inevitable whenever conditions improved, thereby precluding real progress towards a utopian society: "The power of population is indefinitely greater than the power in the earth to produce subsistence for man". As an Anglican cleric, he saw this situation as divinely imposed to teach virtuous behaviour. Malthus wrote that "the increase of population is necessarily limited by the means of subsistence"; "population does invariably increase when the means of subsistence increase"; and "the superior power of population is repressed by moral restraint, vice and misery".
Malthus criticized the Poor Laws for leading to inflation rather than improving the well-being of the poor. He supported taxes on grain imports (the Corn Laws). His views became influential and controversial across economic, political, social and scientific thought. Pioneers of evolutionary biology read him, notably Charles Darwin and Alfred Russel Wallace. Malthus' failure to predict the industrial revolution was a frequent criticism of his theories.
Malthus laid the "...theoretical foundation of the conventional wisdom that has dominated the debate, both scientifically and ideologically, on global hunger and famines for almost two centuries." He remains a much-debated writer.
Early life and education
The sixth child of Henrietta Catherine Graham and Daniel Malthus, Robert Malthus grew up in The Rookery, a country house in Westcott, near Dorking in Surrey. William Petersen describes Daniel Malthus as "a gentleman of good family and independent means [...] [and] a friend of David Hume and Jean-Jacques Rousseau". The young Malthus received his education at home in Bramcote, Nottinghamshire, and then at the Warrington Academy from 1782. Warrington was a dissenting academy, which closed in 1783. Malthus continued for a period to be tutored by Gilbert Wakefield, who had taught him there.
Malthus entered Jesus College, Cambridge, in 1784. While there, he took prizes in English declamation, Latin and Greek, and graduated with honours, Ninth Wrangler in mathematics. His tutor was William Frend. He took the MA degree in 1791, and was elected a Fellow of Jesus College two years later. In 1789, he took orders in the Church of England, and became a curate at Oakwood Chapel (also Okewood) in the parish of Wotton, Surrey.
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Malthus was a demographer before he was ever considered an economist. He first came to prominence for his 1798 publication, An Essay on the Principle of Population. In it, he raised the question of how population growth related to the economy. He affirmed that there were many events, good and bad, that affected the economy in ways no one had ever deliberated upon before. The main point of his essay was that population multiplies geometrically and food arithmetically, therefore whenever the food supply increases, population will rapidly grow to eliminate the abundance. Eventually in the future, there would not be enough food for the whole of humanity to consume and people would starve. Until that point, the more food made available, the more the population would increase. He also stated that there was a fight for survival amongst humans and that only the strong who could attain food and other needs would survive, unlike the impoverished population he saw during his time period.
Malthus wrote the original text in reaction to the optimism of his father and his father's associates (notably Jean-Jaques Rousseau) regarding the future improvement of society. He also constructed his case as a specific response to writings of William Godwin (1756–1836) and of the Marquis de Condorcet (1743–1794). His assertions evoked questions and criticism, and between 1798 and 1826 he published six more versions of An Essay on the Principle of Population, updating each edition to incorporate new material, to address criticism, and to convey changes in his own perspectives on the subject. Even so, the propositions made in An Essay were shocking to the public and largely disregarded during the 19th century. The negativity surrounding his essay created a space filled with opinions on population growth, connected with either praise or criticism of ideas about contraception and the future of agriculture.
The Malthusian controversy to which the Essay gave rise in the decades following its publication tended to focus attention on the birth rate and marriage rates. The neo-Malthusian controversy, comprising related debates of many years later, has seen a similar central role assigned to the numbers of children born. On the whole it may be said that Malthus's revolutionary ideas in the sphere of population growth remain relevant to economic thought even today and continue to make economists ponder about the future.
Travel and further career
In 1799, Malthus made a European tour with William Otter, a close college friend, travelling part of the way with Edward Daniel Clarke and John Marten Cripps, visiting Germany, Scandinavia and Russia. Malthus used the trip to gather population data. Otter later wrote a Memoir of Malthus for the second (1836) edition of his Principles of Political Economy. During the Peace of Amiens of 1802 he travelled to France and Switzerland, in a party that included his relation and future wife Harriet.
In 1805, Malthus became Professor of History and Political Economy at the East India Company College in Hertfordshire. His students affectionately referred to him as "Pop", "Population", or "web-toe" Malthus.
Near the end of 1817, the proposed appointment of Graves Champney Haughton to the college was made a pretext by Randle Jackson and Joseph Hume to launch an attempt to close it down. Malthus wrote a pamphlet defending the college, which was reprieved by the East India Company within the same year, 1817.
In 1818, Malthus became a Fellow of the Royal Society.
Malthus–Ricardo debate on political economy
During the 1820s, there took place a setpiece intellectual discussion among the exponents of political economy, often called the Malthus–Ricardo debate after its leading figures, Malthus and theorist of free trade David Ricardo, both of whom had written books with the title Principles of Political Economy. Under examination were the nature and methods of political economy itself, while it was simultaneously under attack from others. The roots of the debate were in the previous decade. In The Nature of Rent (1815), Malthus had dealt with economic rent, a major concept in classical economics. Ricardo defined a theory of rent in his Principles of Political Economy and Taxation (1817): he regarded rent as value in excess of real production—something caused by ownership rather than by free trade. Rent therefore represented a kind of negative money that landlords could pull out of the production of the land, by means of its scarcity. Contrary to this concept, Malthus proposed rent to be a kind of economic surplus.
The debate developed over the economic concept of a general glut, and the possibility of failure of Say's Law. Malthus laid importance on economic development and the persistence of disequilibrium. The context was the post-war depression; Malthus had a supporter in William Blake, in denying that capital accumulation (saving) was always good in such circumstances, and John Stuart Mill attacked Blake on the fringes of the debate.
Ricardo corresponded with Malthus from 1817 about his Principles. He was drawn into considering political economy in a less restricted sense, which might be adapted to legislation and its multiple objectives, by the thought of Malthus. In Principles of Political Economy (1820) and elsewhere, Malthus addressed the tension, amounting to conflict he saw between a narrow view of political economy and the broader moral and political plane. Leslie Stephen wrote:
If Malthus and Ricardo differed, it was a difference of men who accepted the same first principles. They both professed to interpret Adam Smith as the true prophet, and represented different shades of opinion rather than diverging sects.
It is now considered that the different purposes seen by Malthus and Ricardo for political economy affected their technical discussion, and contributed to the lack of compatible definitions. For example, Jean-Baptiste Say used a definition of production based on goods and services and so queried the restriction of Malthus to "goods" alone.
In terms of public policy, Malthus was a supporter of the protectionist Corn Laws from the end of the Napoleonic Wars. He emerged as the only economist of note to support duties on imported grain. By encouraging domestic production, Malthus argued, the Corn Laws would guarantee British self-sufficiency in food.
Malthus was a founding member in 1821 of the Political Economy Club, where John Cazenove tended to be his ally against Ricardo and Mill. He was elected in the beginning of 1824 as one of the ten royal associates of the Royal Society of Literature. He was also one of the first fellows of the Statistical Society, founded in March 1834. In 1827 he gave evidence to a committee of the House of Commons on emigration.
In 1827, he published Definitions in Political Economy The first chapter put forth "Rules for the Definition and Application of Terms in Political Economy". In chapter 10, the penultimate chapter, he presented 60 numbered paragraphs putting forth terms and their definitions that he proposed should be used in discussing political economy following those rules. This collection of terms and definitions is remarkable for two reasons: first, Malthus was the first economist to explicitly organize, define, and publish his terms as a coherent glossary of defined terms; and second, his definitions were for the most part well-formed definitional statements. Between these chapters, he criticized several contemporary economists—Jean-Baptiste Say, David Ricardo, James Mill, John Ramsay McCulloch, and Samuel Bailey—for sloppiness in choosing, attaching meaning to, and using their technical terms.
McCulloch was the editor of The Scotsman of Edinburgh and replied cuttingly in a review printed on the front page of his newspaper in March 1827. He implied that Malthus wanted to dictate terms and theories to other economists. McCulloch clearly felt his ox gored, and his review of Definitions is largely a bitter defence of his own Principles of Political Economy, and his counter-attack "does little credit to his reputation", being largely "personal derogation" of Malthus. The purpose of Malthus's Definitions was terminological clarity, and Malthus discussed appropriate terms, their definitions, and their use by himself and his contemporaries. This motivation of Malthus's work was disregarded by McCulloch, who responded that there was nothing to be gained "by carping at definitions, and quibbling about the meaning to be attached to" words. Given that statement, it is not surprising that McCulloch's review failed to address the rules of chapter 1 and did not discuss the definitions of chapter 10; he also barely mentioned Malthus's critiques of other writers.
In spite of this and in the wake of McCulloch's scathing review, the reputation of Malthus as economist dropped away for the rest of his life. On the other hand, Malthus did have supporters, including Thomas Chalmers, some of the Oriel Noetics, Richard Jones and William Whewell from Cambridge.
Malthus died suddenly of heart disease on 23 December 1834 at his father-in-law's house. He was buried in Bath Abbey. His portrait, and descriptions by contemporaries, present him as tall and good-looking, but with a cleft lip and palate. The cleft palate affected his speech: such birth defects had occurred before amongst his relatives.
On 13 March 1804, Malthus married Harriet, daughter of John Eckersall of Claverton House, near Bath. They had a son and two daughters. His first born Henry became vicar of Effingham, Surrey in 1835 and of Donnington, Sussex in 1837; he married Sofia Otter (1807–1889), daughter of Bishop William Otter and died in August 1882, aged 76. His middle child Emily died in 1885, outliving her parents and siblings. The youngest Lucille died unmarried and childless in 1825, months before her 18th birthday.
An Essay on the Principle of Population
Malthus argued in his Essay (1798) that population growth generally expanded in times and in regions of plenty until the size of the population relative to the primary resources caused distress:
Yet in all societies, even those that are most vicious, the tendency to a virtuous attachment [i.e., marriage] is so strong that there is a constant effort towards an increase of population. This constant effort as constantly tends to subject the lower classes of the society to distress and to prevent any great permanent amelioration of their condition.— Malthus, T. R. 1798. An Essay on the Principle of Population. Chapter II, p. 18 in Oxford World's Classics reprint.
Malthus argued that two types of checks hold population within resource limits: positive checks, which raise the death rate; and preventive ones, which lower the birth rate. The positive checks include hunger, disease and war; the preventive checks: birth control, postponement of marriage and celibacy.
The rapid increase in the global population of the past century exemplifies Malthus's predicted population patterns; it also appears to describe socio-demographic dynamics of complex pre-industrial societies. These findings are the basis for neo-malthusian modern mathematical models of long-term historical dynamics.
Malthus wrote that in a period of resource abundance, a population could double in 25 years. However, the margin of abundance could not be sustained as population grew, leading to checks on population growth:
If the subsistence for man that the earth affords was to be increased every twenty-five years by a quantity equal to what the whole world at present produces, this would allow the power of production in the earth to be absolutely unlimited, and its ratio of increase much greater than we can conceive that any possible exertions of mankind could make it ... yet still the power of population being a power of a superior order, the increase of the human species can only be kept commensurate to the increase of the means of subsistence by the constant operation of the strong law of necessity acting as a check upon the greater power.— Malthus T. R. 1798. An Essay on the Principle of Population. Chapter 2, p. 8
In later editions of his essay, Malthus clarified his view that if society relied on human misery to limit population growth, then sources of misery (e.g., hunger, disease, and war) would inevitably afflict society, as would volatile economic cycles. On the other hand, "preventive checks" to population that limited birthrates, such as later marriages, could ensure a higher standard of living for all, while also increasing economic stability. Regarding possibilities for freeing man from these limits, Malthus argued against a variety of imaginable solutions, such as the notion that agricultural improvements could expand without limit.
Of the relationship between population and economics, Malthus wrote that when the population of laborers grows faster than the production of food, real wages fall because the growing population causes the cost of living (i.e., the cost of food) to go up. Difficulties of raising a family eventually reduce the rate of population growth, until the falling population again leads to higher real wages.
In the second and subsequent editions Malthus put more emphasis on moral restraint as the best means of easing the poverty of the lower classes."
Editions and versions
- 1798: An Essay on the Principle of Population, as it affects the future improvement of society with remarks on the speculations of Mr. Godwin, M. Condorcet, and other writers.. Anonymously published.
- 1803: Second and much enlarged edition: An Essay on the Principle of Population; or, a view of its past and present effects on human happiness; with an enquiry into our prospects respecting the future removal or mitigation of the evils which it occasions. Authorship acknowledged.
- 1806, 1807, 1816 and 1826: editions 3–6, with relatively minor changes from the second edition.
- 1823: Malthus contributed the article on Population to the supplement of the Encyclopædia Britannica.
- 1830: Malthus had a long extract from the 1823 article reprinted as A summary view of the Principle of Population.
1800: The present high price of provisions
In this work, his first published pamphlet, Malthus argues against the notion prevailing in his locale that the greed of intermediaries caused the high price of provisions. Instead, Malthus says that the high price stems from the Poor Laws, which "increase the parish allowances in proportion to the price of corn." Thus, given a limited supply, the Poor Laws force up the price of daily necessities. However, he concludes by saying that in time of scarcity such Poor Laws, by raising the price of corn more evenly, actually produce a beneficial effect.
1814: Observations on the effects of the Corn Laws
Although government in Britain had regulated the prices of grain, the Corn Laws originated in 1815. At the end of the Napoleonic Wars that year, Parliament passed legislation banning the importation of foreign corn into Britain until domestic corn cost 80 shillings per quarter.[clarification needed] The high price caused the cost of food to increase and caused distress among the working classes in the towns. It led to serious rioting in London and to the Peterloo Massacre in Manchester in 1819.
In this pamphlet, printed during the parliamentary discussion, Malthus tentatively supported the free-traders. He argued that given the increasing cost of growing British corn, advantages accrued from supplementing it from cheaper foreign sources.
1820: Principles of political economy
In 1820 Malthus published Principles of Political Economy. (A second edition was posthumously published in 1836.) Malthus intended this work to rival Ricardo's Principles (1817). It, and his 1827 Definitions in political economy, defended Sismondi's views on "general glut" rather than Say's Law, which in effect states "there can be no general glut".
- 1807. A letter to Samuel Whitbread, Esq. M.P. on his proposed Bill for the Amendment of the Poor Laws. Johnson and Hatchard, London.
- 1808. Spence on Commerce. Edinburgh Review 11, January, 429–448.
- 1808. Newneham and others on the state of Ireland. Edinburgh Review 12, July, 336–355.
- 1809. Newneham on the state of Ireland, Edinburgh Review 14 April, 151–170.
- 1811. Depreciation of paper currency. Edinburgh Review 17, February, 340–372.
- 1812. Pamphlets on the bullion question. Edinburgh Review 18, August, 448–470.
- 1813. A letter to the Rt. Hon. Lord Grenville. Johnson, London.
- 1817. Statement respecting the East-India College. Murray, London.
- 1821. Godwin on Malthus. Edinburgh Review 35, July, 362–377.
- 1823. The Measure of Value, stated and illustrated
- 1823. Tooke – On high and low prices. Quarterly Review, 29 (57), April, 214–239.
- 1824. Political economy. Quarterly Review 30 (60), January, 297–334.
- 1829. On the measure of the conditions necessary to the supply of commodities. Transactions of the Royal Society of Literature of the United Kingdom. 1, 171–180. John Murray, London.
- 1829. On the meaning which is most usually and most correctly attached to the term Value of a Commodity. Transactions of the Royal Society of Literature of the United Kingdom. 2, 74–81. John Murray.
Reception and influence
The vast bulk of continuing commentary on Malthus, however, extends and expands on the "Malthusian controversy" of the early 19th century.
In popular culture
- Ebenezer Scrooge from A Christmas Carol by Charles Dickens represents the perceived ideas of Malthus, famously illustrated by his explanation as to why he refuses to donate to the poor and destitute: "If they would rather die they had better do it, and decrease the surplus population". In general, Dickens had some Malthusian concerns (evident in Oliver Twist, Hard Times and other novels), and he concentrated his attacks on Utilitarianism and many of its proponents, like Jeremy Bentham, whom he thought of, along with Malthus, as unjust and inhumane.
- In Brave New World by Aldous Huxley, a dystopian novel set in a World State which controls reproduction, women wear the "Malthusian belt," containing "the regulation supply of contraceptives."
- In the musical Urinetown, written by Greg Kotis and Mark Hollmann, the characters live in a society in which a fee must be paid in order to urinate, for a drought has made water incredibly scarce. A revolution starts with a "pee for free" agenda. At the end of the show, the revolution wins but the characters end up dying because water was not being conserved, unlike when the 'pee fee' was in place. The penultimate line is "Hail Malthus!"
- In Marvel's film Avengers: Infinity War, the main villain called Thanos appears to be motivated by Malthusian views about population growth, though he already shared similar motivations in the comics.
The epitaph of Malthus in Bath Abbey reads [with commas inserted for clarity]:
Sacred to the memory of the Rev THOMAS ROBERT MALTHUS, long known to the lettered world by his admirable writings on the social branches of political economy, particularly by his essay on population.
One of the best men and truest philosophers of any age or country, raised by native dignity of mind above the misrepresentation of the ignorant and the neglect of the great, he lived a serene and happy life devoted to the pursuit and communication of truth, supported by a calm but firm conviction of the usefulness of his labours, content with the approbation of the wise and good.
His writings will be a lasting monument of the extent and correctness of his understanding.
The spotless integrity of his principles, the equity and candour of his nature, his sweetness of temper, urbanity of manners and tenderness of heart, his benevolence and his piety are still dearer recollections of his family and friends.
Born 14 February 1766 – Died 29 December 1834.
- Cornucopianism, a counter-Malthusian school of thought
- Exponential growth
- Food race, a related idea from Daniel Quinn
- The Limits to Growth, from the Club of Rome
- Hong Liangji, China's Malthus
- Human overpopulation
- Malthusian equilibrium
- Malthusian growth model
- Malthusian trap
- National Security Study Memorandum 200
- Observations Concerning the Increase of Mankind, Peopling of Countries, etc.
- World population
- Several sources give Malthus's date of death as 15 December 1834. See Meyers Konversationslexikon (Leipzig, 4th edition, 1885–1892), "Biography" by Nigel Malthus (the memorial transcription reproduced in this article). However, the article in . Encyclopædia Britannica. 17 (11th ed.). 1911. p. 515. gives 23 December 1834.
- Petersen, William (1979). Malthus: Founder of Modern Demography. Cambridge, Massachusetts: Harvard University Press. p. 19. ISBN 9780674544253.
- Geoffrey Gilbert, introduction to Malthus T.R. 1798. An Essay on the Principle of Population. Oxford World's Classics reprint. viii in Oxford World's Classics reprint.
- Malthus, Thomas Robert. An Essay on the Principle of Population. Oxfordshire, England: Oxford World's Classics. p. 13. ISBN 978-1450535540.
- Bowler, Peter J. (2003). Evolution: The History of an Idea. Berkeley, California: University of California Press. pp. 104–05. ISBN 978-0-520-23693-6.
- Malthus, p. 61.
- Malthus, pp. 39–45.
- Malthus, p. xx.
- Browne, Janet (1995). Charles Darwin: Voyaging. New York City: Random House. pp. 385–390. ISBN 978-1407053202.
- Raby, Peter (2001). Alfred Russel Wallace: a Life. Princeton, New Jersey: ]Princeton University Press. pp. 21, 131. ISBN 0-691-00695-4.
- Weir D.R. (1987) Malthus’s Theory of Population. In: Palgrave Macmillan (eds) The New Palgrave Dictionary of Economics. Palgrave Macmillan, London. DOI-10.1057/978-1-349-95121-5_1062-1
- Daoud, Adel. (2010) "Robbins and Malthus on scarcity, abundance, and sufficiency: The missing sociocultural element." American Journal of Economics and Sociology 69.4 (2010): 1206-1229.-Daoud citing Harvey, David. (1974). "Population, Resources, and the Ideology of Science". Economic Geography 50(3): 256–277.
- Daoud, Adel. (2010) "Robbins and Malthus on scarcity, abundance, and sufficiency: The missing sociocultural element." American Journal of Economics and Sociology 69.4 (2010): 1206-1229.-Daoud citing Kutzner, Patricia L. (1991). World Hunger: A Reference Handbook. Santa Barbara: ABC-Clio.
- "Malthus, Thomas Robert". Retrieved 4 January 2019.
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- Petersen, William. 1979. Malthus. Heinemann, London. 2nd ed., 1999. p. 21
- Avery, John (1997). Progress, Poverty and Population: Re-Reading Condorcet, Godwin and Malthus. London, England: Psychology Press. pp. 56–57. ISBN 978-0-7146-4750-0.
- Petersen, William. 1979. Malthus. Heinemann, London. 2nd ed., 1999. p. 28
- "Malthus, Thomas Robert (MLTS784TR)". A Cambridge Alumni Database. University of Cambridge.
- Malthus, Thomas Robert (1997). T.R. Malthus: The Unpublished Papers in the Collection of Kanto Gakuen University. Cambridge, England: Cambridge University Press. p. 54 note 196. ISBN 978-0-521-58138-7.
- Griffith, G. Talbot (2010). Population Problems of the Age of Malthus. Cambridge, England: Cambridge University Press. p. 97. ISBN 978-0-691-10240-5.
- Lee, Sidney, ed. (1895). . Dictionary of National Biography. 42. London: Smith, Elder & Co.
- Burns, Arthur. "Otter, William". Oxford Dictionary of National Biography (online ed.). Oxford University Press. doi:10.1093/ref:odnb/20935. (Subscription or UK public library membership required.)
- de Caritat Condorcet (marquès de), Jean-Antoine-Nicolas; Godwin, William; Malthus, Thomas Robert (1997). Avery, John (ed.). Progress, Poverty and Population: Re-Reading Condorcet, Godwin and Malthus. Abingdon, England: Routledge. p. 64. ISBN 978-0-7146-4750-0.
- Malthus T. R. 1798. The Essay of the Population Principle. Oxford World's Classics reprint: xxix, Chronology.
- Thomas Robert Malthus (1997). T.R. Malthus: The Unpublished Papers in the Collection of Kanto Gakuen University. Cambridge University Press. p. 120 notes. ISBN 978-0-521-58138-7.
- Poovey, Mary (1998). A History of the Modern Fact: Problems of Knowledge in the Sciences of Wealth and Society. Chicago, Illinois: University of Chicago Press. p. 295. ISBN 978-0-226-67525-1.
- On The Principles of Political Economy and Taxation, London: John Murray, Albemarle-Street, by David Ricardo, 1817 (third edition 1821) – Chapter 6, On Profits: paragraph 28, "Thus, taking the former ..." and paragraph 33, "There can, however ..."
- "Thomas Robert Malthus". www.d.umn.edu. Retrieved 19 November 2019.
- Sowell, pp. 193–4.
- Winch, Donald (26 January 1996). Riches and Poverty: An Intellectual History of Political Economy in Britain, 1750–1834. Cambridge, England: Cambridge University Press. p. 365. ISBN 978-0-521-55920-1. Retrieved 14 June 2013.
- Stefan Collini; Donald Winch; John Wyon Burrow (1983). That Noble Science of Politics: A Study in Nineteenth Century Intellectual History. CUP Archive. p. 65. ISBN 978-0-521-27770-9.
- Leslie Stephen (2006). The English Utilitarians. 1. Continuum International Publishing Group. p. 238. ISBN 978-0-8264-8816-9.
- Samuel Hollander (2005). Jean-Baptiste Say and the Classical Canon in Economics: The British Connection in French Classicism. Taylor & Francis. p. 170. ISBN 978-0-203-02228-3.
- Geoffrey Gilbert, introduction to Malthus T.R. 1798. An Essay on the Principle of Population. Oxford World's Classics reprint. xx in Oxford World's Classics series. xx
- Cannan E. 1893. A History of the Theories of Production and Distribution in English Political Economy from 1776 to 1848. Kelly, New York.
- Thomas Robert Malthus (1989). Principles of Political Economy. Cambridge University Press. p. lxviii. ISBN 978-0-521-24775-7.
- Lee, Sidney, ed. (1893). . Dictionary of National Biography. 36. London: Smith, Elder & Co.
- Malthus, Thomas Robert (1827). Definitions in Political Economy Preceded by an Inquiry into the Rules which Ought to Guide Political Economists in the Definition and Use of Their Terms, with Remarks on the Deviation from These Rules in Their Writings. London: John Murray.
- Malthus, Thomas Robert (2016). Definitions in Political Economy. McLean: Berkeley Bridge Press. ISBN 978-1-945208-01-0.
- McCulloch, John Ramsay (10 March 1827). "A Review of Definitions in Political Economy by the Rev. T. R. Malthus". The Scotsman: 1.
- McCulloch, John Ramsay (1825). The Principles of Political Economy. Edinburgh: William & Charles Tait.
- Morton Paglin's "Introduction" to: Malthus, Thomas Robert (1986). Definitions in Political Economy. Fairfield, New Jersey: Augustus M. Kelley. p. xiii.
- James P. Huzel (2006). The Popularization of Malthus in Early Nineteenth-Century England: Martineau, Cobbett And the Pauper Press. Ashgate Publishing, Ltd. p. 38. ISBN 978-0-7546-5427-8.
- Donald Winch (26 January 1996). Riches and Poverty: An Intellectual History of Political Economy in Britain, 1750–1834. Cambridge University Press. pp. 371–72. ISBN 978-0-521-55920-1.
- Painted by John Linnell and seen here in a cropped and scanned monochrome version.
- Hodgson, M.H (2007). "Malthus, Thomas Robert (1766–1834)". In Rutherford, Donald (ed.). Biographical Dictionary of British Economists. London, England: Bloomsbury Academic. ISBN 9781843711513.
- Martineau, Harriet 1877. Autobiography. 3 vols, Smith, Elder, London. vol 1, p. 327.
- Geoffrey Gilbert, introduction to Malthus T.R. 1798. An Essay on the Principle of Population. Oxford World's Classics reprint. viii
- See, e.g., Peter Turchin 2003; Turchin and Korotayev 2006 Archived 29 February 2012 at the Wayback Machine; Peter Turchin et al. 2007; Korotayev et al. 2006.
- Oxford World's Classics reprint
- Essay (1826), I:2. See also A:1:17
- Malthus, Thomas Robert (1 December 2011). An Essay on the Principle of Population (Two Volumes in One). Cosimo, Inc. pp. 5–11. ISBN 9781616405700.
- Geoffrey Gilbert, introduction to Malthus T.R. 1798. An Essay on the Principle of Population. Oxford World's Classics reprint, p. xviii
- dates from Malthus T.R. 1798. An Essay on the Principle of Population. Oxford World's Classics reprint: xxix Chronology.
- 1800: The present high price of provisions, paragraph 26
- Hirst, Francis Wrigley (1925). From Adam Smith to Philip Snowden: a History of Free Trade in Great Britain. London, England: T. Fisher Unwin. p. 88. ASIN B007T0ONNO.
- Hobsbawm, Eric (1999). Industry and Empire: The Birth of the Industrial Revolution. New York City: The New Press. p. 175. ISBN 978-1565845619.
The Corn Laws... safeguarded farmers from the consequences of their wartime euphoria, when farms had changed hands at the fanciest prices, loans and mortgages had been accepted on impossible terms
- See Malthus, Thomas Robert (1820). "Principles of Political Economy Considered with a View of their Practical Application" (1 ed.). London: John Murray. Cite journal requires
- Steven G. Medema; Warren J. Samuels (2003). The History of Economic Thought: A Reader. Routledge. p. 291. ISBN 978-0-415-20550-4.
- Dickens, Charles (1845). A Christmas carol in prose. Bradword, Evans. p. 14.
- Paroissien, David (2008). A companion to Charles Dickens. John Wiley and Sons. ISBN 978-1-4051-3097-4.
- Huxley, Aldous (1932). Brave New World. New York: Harper & Brothers. ISBN 978-0-06-085052-4.
- "Avengers: Infinity War-Thanos, the Malthusian Purple Dude is the Best Villain of MCU". News18. Retrieved 27 April 2018.
- Orr, Christopher. "'Avengers: Infinity War' Is an Extraordinary Juggling Act". The Atlantic. Retrieved 27 April 2018.
- This article incorporates text from a publication now in the public domain: Lee, Sidney, ed. (1893). "Malthus, Thomas Robert". Dictionary of National Biography. 36. London: Smith, Elder & Co.
- Dupâquier, J. 2001. Malthus, Thomas Robert (1766–1834). International Encyclopedia of the Social & Behavioral Sciences, 9151–56. Abstract.
- Elwell, Frank W. 2001. A commentary on Malthus's 1798 Essay on Population as social theory. Mellon Press.
- Evans, L.T. 1998. Feeding the ten billion – plants and population growth. Cambridge University Press. Paperback, 247 pages.
- Klaus Hofmann: Beyond the Principle of Population. Malthus' Essay. In: The European Journal of the History of Economic Thought. Bd. 20 (2013), H. 3, S. 399–425, doi:10.1080/09672567.2012.654805.
- Hollander, Samuel 1997. The Economics of Thomas Robert Malthus. University of Toronto Press. Dedicated to Malthus by the author. ISBN 0-521-64685-5.
- James, Patricia. Population Malthus: his life and times. London: Routledge and Kegan Paul. 1979.
- Malthus, Thomas Robert. Definitions in Political Economy. Edited by Alexander K Bocast. Critical edition. McLean: Berkeley Bridge Press, 2016. ISBN 978-1-945208-01-0.
- Peterson, William 1999. Malthus, founder of modern demography 2nd ed. Transaction. ISBN 0-7658-0481-6.
- Rohe, John F., A Bicentennial Malthusian Essay: conservation, population and the indifference to limits, Rhodes & Easton, Traverse City, MI. 1997
- Sowell, Thomas, The General Glut Controversy Reconsidered, Oxford Economic Papers New Series, Vol. 15, No. 3 (November 1963), pp. 193–203. Published by: Oxford University Press. Stable URL: https://www.jstor.org/stable/2661714
- Spiegel, Henry William (1991) . The growth of economic thought (3 ed.). Durham, NC: Duke University Press. p. 868. ISBN 978-0-8223-0965-9.
- Bashford, Alison, and Joyce E. Chaplin. The New Worlds of Thomas Robert Malthus: Rereading the Principle of Population (Princeton University Press, 2016). vii + 353 pp. excerpt; also online review
- Elwell, Frank W. 2001. A Commentary on Malthus' 1798 Essay on Population as social theory E. Mellen Press, Lewiston, NY. ISBN 0-7734-7669-5.
- Heilbroner, Robert, The Worldly Philosophers – the lives, times, and ideas of the great economic thinkers. (1953) commentary
- Mayhew, Robert J. (2014). Malthus: The Life and Legacies of an Untimely Prophet. Cambridge, MA: Belknap Press. ISBN 978-0-674-72871-4.
- Negative Population Growth organization: a collection of essays for the Malthus Bicentenary
- National Academics Forum, Australia: a collection of essays for the Malthus Bicentenary Conference, 1998
- Conceptual origins of Malthus's Essay on Population, facsimile reprint of 8 Books in 6 volumes, edited by Yoshinobu Nanagita (ISBN 978-4-902454-14-7) www.aplink.co.jp/ep/4-902454-14-9.htm
- National Geographic Magazine, June 2009 article, "The Global Food Crisis,"
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- Works by Thomas Robert Malthus at Project Gutenberg
- Works by or about Thomas Robert Malthus at Internet Archive
- Works by Thomas Robert Malthus at LibriVox (public domain audiobooks)
- Malthus, Thomas Robert (1999). Gilbert, Geoffrey (ed.). An Essay on the Principle of Population. Oxford world's classics. Oxford University Press. p. 208. ISBN 978-0-19-283747-9.
- Herbermann, Charles, ed. (1913). Catholic Encyclopedia. New York: Robert Appleton Company. .
- More Food for More People But Not For All, and Not Forever United Nations Population Fund website [Not found]
- The Feast of Malthus by Garrett Hardin in The Social Contract (1998)
- The International Society of Malthus
- Online chapter "Malthus and the Evolutionists: The Common Context of Biological and Social Theory" from Darwin's Metaphor: Nature's Place in Victorian Culture by Professor Robert M. Young (1985, 1988, 1994). Cambridge University Press.
- "Thomas Robert Malthus (1766–1834)". The Concise Encyclopedia of Economics. Library of Economics and Liberty (2nd ed.). Liberty Fund. 2008.
- Thomas Robert Malthus at Find a Grave