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Supply-side economics is a school of macroeconomics that argues that economic growth can be most effectively created by lowering barriers for people to produce (supply) goods and services, such as lowering income tax and capital gains tax rates, and by allowing greater flexibility by reducing regulation. According to supply-side economics, consumers will then benefit from a greater supply of goods and services at lower prices. Typical policy recommendations of supply-side economists are lower marginal tax rates and less regulation.
The Laffer curve embodies a tenet of supply side economics: that government tax revenues from a specific tax are the same (nil) at 100% tax rates as at 0% tax rates respectively. The tax rate that achieves optimum, or highest government revenues is somewhere in between these two values.
The term "supply-side economics" was thought, for some time, to have been coined by journalist Jude Wanniski in 1975, but according to Robert D. Atkinson's Supply-Side Follies, the term "supply side" ("supply-side fiscalists") was first used by Herbert Stein, a former economic adviser to President Nixon, in 1976, and only later that year was this term repeated by Jude Wanniski. Its use connotes the ideas of economists Robert Mundell and Arthur Laffer. Supply-side economics is likened by critics to "trickle-down economics".
Supply-side economics developed during the 1970s in response to Keynesian economic policy, and in particular the failure of demand management to stabilize Western economies during the stagflation of the 1970s, in the wake of the oil crisis in 1973. It drew on a range of non-Keynesian economic thought, particularly the Chicago School and Neo-Classical School. An advocate[who?] of supply-side economics traced the school of thought's intellectual descent from the philosophers Ibn Khaldun and David Hume, satirist Jonathan Swift, political economist Adam Smith, and even Founding Father Alexander Hamilton.
However what most separates supply-side economics as a modern phenomenon is its argument in favor of a low tax rate for primarily collective and notably working-class reasons, rather than traditional ideological ones. The difference is an important one. Classical Liberals opposed taxes because they opposed government, taxation being the latter's most obvious form. Their claim was that each man had a right to himself and his property and therefore taxation was immoral and of questionable legal grounding. Supply-side economists, on the other hand, argued that the alleged collective benefit (i.e. jobs) provided the main impetus for tax cuts.
As in classical economics, supply-side economics proposed that production or supply is the key to economic prosperity and that consumption or demand is merely a secondary consequence. Early on this idea had been summarized in Say's Law of economics, which states: "A product is no sooner created, than it, from that instant, affords a market for other products to the full extent of its own value." John Maynard Keynes, the founder of Keynesianism, summarized Say's Law as "supply creates its own demand." He turned Say's Law on its head in the 1930s by declaring that demand creates its own supply.
However, Say's Law does not state that production creates a demand for the product itself, but rather a demand for "other products to the full extent of its own value." A better formulation of the law is that the supply of one good constitutes demand for one or more other goods. This requires that the original good has some value to another party and it is through willingness to trade this value that the producer of the new good can express his demand for another good.
In 1978, Jude Wanniski published The Way the World Works, in which he laid out the central thesis of supply-side economics and detailed the failure of high tax-rate progressive income tax systems and U.S. monetary policy under Nixon in the 1970s. Wanniski advocated lower tax rates and a return to some kind of gold standard, similar to the 1944-1971 Bretton Woods System that Nixon abandoned.
In 1983, economist Victor Canto, a disciple of Arthur Laffer, published The Foundations of Supply-Side Economics. This theory focuses on the effects of marginal tax rates on the incentive to work and save, which affect the growth of the "supply side" or what Keynesians call potential output. While the latter focus on changes in the rate of supply-side growth in the long run, the "new" supply-siders often promised short-term results.
The supply-siders were influenced strongly by the idea of the Laffer curve, which states that tax rates and tax revenues were distinct—that tax rates too high or too low will not maximize tax revenues. Supply-siders felt that in a high tax rate environment, lowering tax rates to the right level can raise revenue by causing faster economic growth.
This led the supply-siders to advocate large reductions in marginal income and capital gains tax rates to encourage allocation of assets to investment, which would produce more supply. Jude Wanniski and many others advocate a zero capital gains rate. The increased aggregate supply would result in increased aggregate demand, hence the term "Supply-Side Economics".
Furthermore, in response to inflation, supply-siders called for indexed marginal income tax rates, as monetary inflation had pushed wage earners into higher marginal income tax brackets that remained static; that is, as wages increased to maintain purchasing power with prices, income tax brackets were not adjusted accordingly and thus wage earners were pushed into higher income tax brackets than tax policy had intended.
Supply-side economics has been criticized as essentially politically conservative. Supply-side advocates claim that they are not following an ideology, but are reinstating classical economics. Yet, supply-siders such as Jude Wanniski have argued for lower tax rates to increase tax revenues, and that redistribution of income through taxation was essential to the health of the polity—a view that is anathema to traditional conservatives.
Some economists see similarities between supply-side proposals and Keynesian economics. If the result of changes to the tax structure is a fiscal deficit then the 'supply-side' policy is effectively stimulating demand through the Keynesian multiplier effect. Supply-side proponents would point out, in response, that the level of taxation and spending is important for economic incentives, not just the size of the deficit.
Marx and Smith
Both supply-siders and their opponents have been keen to claim the mantles of thinkers as diverse as Karl Marx and Adam Smith. Jude Wanniski has claimed both as supply-side thinkers due to their advocacy of a gold monetary standard and more specifically their focus on the agents of production in an economy. Barton Biggs, chief investment strategist of Morgan Stanley, described Wanniski's book about supply-side economics, The Way the World Works, as the "most important" economic book published since Marx's writings.
Fiscal policy theory
Supply-side economics holds that increased taxation steadily reduces economic trade between economic participants within a nation and that it discourages investment. Taxes act as a type of trade barrier or tariff that causes economic participants to revert to less efficient means of satisfying their needs. As such, higher taxation leads to lower levels of specialization and lower economic efficiency. The idea is said to be illustrated by the Laffer curve. (Case & Fair, 1999: 780, 781).
Crucial to the operation of supply-side theory is the expansion of free trade and free movement of capital. It is argued that free capital movement, in addition to the classical reasoning of comparative advantage, frequently allows an economic expansion. Lowering tax barriers to trade provides to the domestic economy all the advantages that the international economy gets from lower tariff barriers.
Supply-side economists have less to say on the effects of deficits, and sometimes cite Robert Barro’s work that states that rational economic actors will buy bonds in sufficient quantities to reduce long term interest rates. Critics argue that standard exchange rate theory would predict, instead, a devaluation of the currency of the nation running the high budget deficit, and eventual "crowding out" of private investment.
According to Mundell, "Fiscal discipline is a learned behavior." To put it another way, eventually the unfavourable effects of running persistent budget deficits will force governments to reduce spending in line with their levels of revenue. This view is also promoted by Victor Canto.
The central issue at stake is the point of diminishing returns on liquidity in the investment sector: Is there a point where additional money is "pushing on a string"? To the supply-side economist, reallocation away from consumption to private investment, and most especially from public investment to private investment, will always yield superior economic results.
In standard monetarist and Keynesian theory, however, there will be a point where increases in asset prices will produce no new supply. A point where investment demand outruns potential investment supply, and produce instead asset inflation, or in common terms a bubble. The existence of this point, and where it is should it exist, is the essential question of the efficacy of supply-side economics.
Effect on tax revenues
Many early proponents argued that the size of the economic growth would be significant enough that the increased government revenue from a faster growing economy would be sufficient to compensate completely for the short-term costs of a tax cut, and that tax cuts could, in fact, cause overall revenue to increase. Some hold this was borne out during the 1980s when, advocates of supply-side economics claim, tax cuts ultimately led to an overall increase in governmental revenue due to stronger economic growth. Other economists, however, dispute this assertion.
Although the term "supply-side economics" may have been coined later, the idea was experimented with in the 1920s. Income tax rates were cut several times in the early 20s, in total cutting the average tax rate by less than half. Although those responsible for the cuts had claimed the cuts would increase tax revenue, this did not occur. Income tax revenue did not reach even close to 1920 levels until tax rates were returned to 1920 levels in 1941.
Some contemporary economists do not consider supply-side economics a tenable economic theory, with Alan Blinder calling it an "ill-fated" and perhaps "silly" school on the pages of a 2006 textbook. Greg Mankiw, former chairman of President George W. Bush's Council of Economic Advisors, offered similarly sharp criticism of the school in the early editions of his introductory economics textbook. In a 1992 article for the Harvard International Review, James Tobin wrote, "[The] idea that tax cuts would actually increase revenues turned out to deserve the ridicule…"
|“||The extreme promises of supply-side economics did not materialize. President Reagan argued that because of the effect depicted in the Laffer curve, the government could maintain expenditures, cut tax rates, and balance the budget. This was not the case. Government revenues fell sharply from levels that would have been realized without the tax cuts.
- Karl Case & Ray Fair, Principles of Economics (2007), p. 695.
Supply side proponents Trabandt and Uhlig argue that "static scoring overestimates the revenue loss for labor and capital tax cuts", and that instead "dynamic scoring" is a better predictor for the effects of tax cuts. To address these criticisms, in 2003 the Congressional Budget Office conducted a dynamic scoring analysis of tax cuts advocated by supply advocates; Two of the nine models used in the study predicted a large improvement in the deficit over the next ten years resulting from tax cuts and the other seven models did not.
U.S. monetary and fiscal experience
Supply-side economists seek a cause and effect relationship between lowering marginal rates on capital formation and economic expansion. The supply-side history of economics since the 1960s hinges on the following key turning points:
Ronald Reagan made supply-side economics a household phrase, and promised an across-the-board reduction in income tax rates and an even larger reduction in capital gains tax rates. (Case & Fair, 1999: 781, 782). When vying for the Republican party presidential nomination for the 1980 election, George H.W. Bush derided Reagan's supply-side policies as "voodoo economics". However, later he seemed to give lip service to these policies to secure the Republican nomination in 1988, and is speculated by some to have lost in his re-election bid in 1992 by allowing tax increases. (See: "Read my lips: No new taxes".)
In the United States, commentators frequently equate supply-side economics with Reaganomics. The fiscal policies of Ronald Reagan were largely based on supply-side economics. During Reagan's 1980 presidential campaign, the key economic concern was double digit inflation, which Reagan described as "Too many dollars chasing too few goods", but rather than the usual dose of tight money, recession and layoffs, with their consequent loss of production and wealth, he promised a gradual and painless way to fight inflation by "producing our way out of it".
Switching from an earlier monetarist policy, Federal Reserve chair Paul Volcker began a policy of tighter monetary policies such as lower money supply growth to break the inflationary psychology and squeeze inflationary expectations out of the economic system. Therefore, supply-side supporters argue, "Reaganomics" was only partially based on supply-side economics. However, under Reagan, Congress passed a plan that would slash taxes by $749 billion over five years. As a result, Jason Hymowitz cited Reagan—along with Jack Kemp—as a great advocate for supply-side economics in politics and repeatedly praised his leadership.
Critics of "Reaganomics" claim it failed to produce much of the exaggerated gains some supply-siders had promised. Krugman later summarized the situation: "When Ronald Reagan was elected, the supply-siders got a chance to try out their ideas. Unfortunately, they failed." Although he credited supply-side economics for being more successful than monetarism which he claimed "left the economy in ruins", he stated that supply-side economics produced results which fell "so far short of what it promised," describing the supply-side theory as "free lunches".
Krugman and other critics point to increased budget deficits during the Reagan administration as proof that the Laffer Curve is wrong. Supply-side advocates claim that revenues increased, but that spending increased faster. However, they typically point to total revenues even though it was only income taxes rates that were cut while other taxes, notably payroll taxes were raised. That table also does not account for inflation. For example, of the increase from $600.6 billion in 1983 to $666.5 billion in 1984, $26 billion is due to inflation, $18.3 billion to corporate taxes and $21.4 billion to social insurance revenues (mostly FICA taxes).
Income tax revenues in constant dollars decreased by $2.77 billion in that year. Supply-siders cannot legitimately take credit for increased FICA tax revenue, because in 1983 FICA tax rates were increased from 6.7% to 7% and the ceiling was raised by $2,100. For the self-employed, the FICA tax rate went from 9.35% to 14%. The FICA tax rate increased throughout Reagan's term, and rose to 7.51% in 1988 and the ceiling was raised by 61% through Reagan's two terms. Those tax hikes on wage earners, along with inflation, are the source of the revenue gains of the early 1980s.
It has been contended by some supply-side critics that the argument to lower taxes to increase revenues was a smokescreen for "starving" the government of revenues, in the hope that the tax cuts would lead to a commensurate drop in government spending. However, this did not turn out to be the case on the spending side; Paul Samuelson called this notion "the tape worm theory—the idea that the way to get rid of a tape worm is [to] stab your patient in the stomach".
Reagan himself gave credence to Samuelson’s argument when he used this analogy, “We can lecture our children about extravagance until we run out of voice and breath. Or we can cure their extravagance by simply reducing their allowance.” There was a second smokescreen as well, closely related to the first. If there was not a drop in total government spending, what Reagan did achieve was to not only move the national debate to the right of center but to move the center itself. So, for his eight years and most of the period since then, political battles have been fought on the conservatives’ turf. How much or how little to cut Federal programs became the issue du jour. Efforts to prevent draconian cuts in discretionary programs for the poor, such as a campaign in the early 1980s by mainline Protestant denominations under the banner, “The Poor Have Suffered Enough,” quickly discovered this. To this day, subsequent similar attempts to increase or restore funds for these programs only confirmed the political lesson these church bodies learned, that the repositioning of where the battle would be joined may have been Reagan’s greatest domestic achievement.
Supply-side advocates like Wanniski counter that social and fiscal conservatives who supported the supply-side prescription on tax policy for this reason were misguided and did not understand the Laffer Curve.
There is frequent confusion on the meaning of the term 'supply-side economics', between the related ideas of the existence of the Laffer Curve and the belief that decreasing tax rates can increase tax revenues. But many supply-side economists doubt the latter claim, while still supporting the general policy of tax cuts. Economist Gregory Mankiw used the term "fad economics" to describe the notion of tax rate cuts increasing revenue in the third edition of his Principles of Macroeconomics textbook in a section entitled "Charlatans and Cranks":
|“||An example of fad economics occurred in 1980, when a small group of economists advised Presidential candidate, Ronald Reagan, that an across-the-board cut in income tax rates would raise tax revenue. They argued that if people could keep a higher fraction of their income, people would work harder to earn more income. Even though tax rates would be lower, income would rise by so much, they claimed, that tax revenues would rise. Almost all professional economists, including most of those who supported Reagan's proposal to cut taxes, viewed this outcome as far too optimistic. Lower tax rates might encourage people to work harder and this extra effort would offset the direct effects of lower tax rates to some extent, but there was no credible evidence that work effort would rise by enough to cause tax revenues to rise in the face of lower tax rates. … People on fad diets put their health at risk but rarely achieve the permanent weight loss they desire. Similarly, when politicians rely on the advice of charlatans and cranks, they rarely get the desirable results they anticipate. After Reagan's election, Congress passed the cut in tax rates that Reagan advocated, but the tax cut did not cause tax revenues to rise.||”|
Research since 2000
In 2003, Alan Murray, who at the time was Washington bureau chief for CNBC and a co-host of the television program Capital Report, declared the debate over supply-side economics to have ended "with a whimper" after extensive modeling performed by the Congressional Budget Office (CBO) predicted that the revenue generating effects of the specific tax cuts examined would be, in his words, "relatively small." Murray also suggested that Dan Crippen may have lost his chance at reappointment as head of the CBO over the dynamic scoring issue.
Before President Bush signed the 2003 tax cuts, the liberal Economic Policy Institute (EPI) released a statement signed by ten Nobel prize laureates entitled "Economists' statement opposing the Bush tax cuts", which states that:
Passing these tax cuts will worsen the long-term budget outlook, adding to the nation’s projected chronic deficits. This fiscal deterioration will reduce the capacity of the government to finance Social Security and Medicare benefits as well as investments in schools, health, infrastructure, and basic research. Moreover, the proposed tax cuts will generate further inequalities in after-tax income.
Nobel laureate economist Milton Friedman agreed the tax cuts would reduce tax revenues and result in intolerable deficits, though he supported them as a means to restrain federal spending. Friedman characterized the reduced government tax revenue as "cutting their allowance".
Bush tax cuts
Later analysis of the Bush tax cuts by the Economic Policy Institute claims that the Bush tax cuts have failed to promote growth, as all macroeconomic growth indicators, save the housing market, were well below average for the 2001 to 2005 business cycle. These critics argue that the Bush tax cuts have done little more than deprive government of revenue, and increase deficit and after-tax income inequality.
In the two years since that report, though, growth has remained strong, and newer numbers dispute the conclusions of the EPI report. The Bush administration points to the long period of sustained growth, both in GDP and in overall job numbers, as well as increases in personal income and decreases in the government deficit. However, the claims by the Bush administration were made prior to the onset of the 2008 financial crisis.
The results of the tax cuts in the U.S. in 2001 and 2003 are mixed. While results show a temporary decline in tax receipts, they later recovered due to economic growth. In this analysis, it is difficult to discern the reason for the decreases in tax revenue because 2001 was the same year that the dot-com bubble burst. Total Federal Revenues in FY2000 were $2.025 trillion (in inflation adjusted dollars).
In 2001, President George W. Bush signed the Economic Growth and Tax Relief Reconciliation Act of 2001. Rather than wait for the start of the new fiscal year, income tax rate reductions started on July 1, 2001. In addition, rebate checks were sent to everyone who filed a 2000 income tax return before October 1, the start of the new federal fiscal year. Federal revenues in FY2001 were $1.946 trillion, $79 billion lower than in FY2000. More of the 2001 tax cut took effect at the start of FY2002, including cuts in the estate tax, retirement and educational savings. Federal revenues in FY2002 were $1.777 trillion, $247 billion lower than in FY2000.
In 2003, President Bush signed the Jobs and Growth Tax Relief Reconciliation Act of 2003. Income tax rates were immediately reduced and rebate checks issued (without waiting for the new fiscal year). Federal revenues in FY2003 were $1.665 trillion, $360 billion lower than in FY2000. Federal revenues in FY2004 were 1.707 trillion, $318 billion lower than in FY2000. Federal revenues in FY2005 were $1,888, $137 billion lower than in FY2000, but by 2006 revenue had completely recovered (in inflation adjusted dollars), with receipts at $2.037 trillion, $12 billion higher than 2000. The cumulative total of federal revenues less than in FY2000 for the fiscal years 2001-2005 was $1.142 trillion, with that amount expected to be recovered by 2011, with 2012 expected to produce an additional $400 billion in excess revenue over 2000.
Federal revenues include revenue from different taxes that were cut, stayed the same, or were raised. For example, the Social Security FICA tax rate stayed the same while the maximum income subject to the tax was increased each year, resulting in a tax increase for those earning more than the previous limit. Social Security tax revenues increased each and every year. Including increasing tax revenues from taxes that stayed the same or were increased hides the magnitude of the revenue decrease in taxes that were cut. Income tax rates were cut and income tax revenues were lower than the FY2000 level each and every fiscal year from 2001–2005, a cumulative revenue decrease of $640 billion (measured in nominal dollars).
But, by 2006 revenues exceeded the 2000 level. Likewise Corporate income tax rates were cut and revenues were lower than the FY2000 level each and every fiscal year from 2001-2004. But, by 2005 the inflation adjusted take exceeded that of 2000 by over 20%, and by 2006 nearly 50% higher. Since tax cuts took after a stock market crash, and their effects were contemporaneous with both a recession and the 9/11 attacks, it's unclear whether temporary decreases in government revenue were the result of those cuts, or to other factors affecting the economy.
In 2006, the CBO released a study titled "A Dynamic Analysis of Permanent Extension of the President's Tax Relief." This study found that under the best possible scenario, making tax cuts permanent would increase the economy "over the long run" by 0.7%. Since the "long run" is not defined, some commentators have suggested that 20 years should be used, making the annual best case GDP growth equal to 0.04%. When compared with the cost of the tax cuts, the best case growth scenario is still not sufficient to pay for the tax cuts. Previous official CBO estimates had identified the tax cuts as costing the equivalent of 1.4% of the GDP in revenue. According to the study, if the best case growth scenario is applied, the tax cuts would still cost the equivalent of 1.27% of the GDP.
This study was criticized by many economists, including Harvard Economics Professor Greg Mankiw, who pointed out that the CBO used a very low value for the earnings-weighted compensated labor supply elasticity of 0.14. In a paper published in the Journal of Public Economics, Mankiw and Matthew Weinzierl noted that the current economics research would place an appropriate value for labor supply elasticity at around 0.5, although Dr. Mankiw notes, "unfortunately, the academic literature on this topic is far from conclusive."
A 2008 working paper sponsored by the IMF showed "that the Laffer curve can arise even with very small changes in labor supply effects" but that "labor supply changes do not cause the Laffer effect." This is contrary to the supply-side explanation of the Laffer curve, in which the increases in tax revenue are held to be the result of an increase in labor supply. Instead their proposed mechanism for the Laffer effect was that "tax rate cuts can increase revenues by improving tax compliance." The study examined in particular the case of Russia which has comparatively high rates of tax evasion. In that case, their tax compliance model did yield significant revenue increases:
|“||To illustrate the potential effects of tax rate cuts on tax revenues consider the example of Russia. Russia introduced a flat 13 percent personal income tax rate, replacing the three tiered, 12, 20 and 30 percent previous rates (as detailed in Ivanova, Keen and Klemm, 2005). The tax exempt income was also increased, further decreasing the tax burden. Considering social tax reforms enacted at the same time, tax rates were cut substantially for most taxpayers. However, personal income tax (PIT) revenues have increased significantly: 46 percent in nominal and 26 percent real terms during the next year. Even more interesting PIT revenues have increased from 2.4 percent to 2.9 percent of GDP—a more than 20 percent increase relative to GDP. PIT revenues continued to increase to 3.3 percent during the next year, representing a further 14 percent gain relative to GDP.||”|
In 2003, a Congressional Budget Office study was conducted to forecast whether currently proposed tax cuts would increase revenues. The study used dynamic scoring models as supply side advocates had wanted and was conducted by a supply side advocate. The majority of the models applied predicted that the proposed tax cuts would not increase revenues.
Critics of supply-side economics point to the lack of academic economics credentials by movement leaders such as Jude Wanniski and Robert Bartley to imply that the theories behind it are bankrupt. David Harper and others dismiss the theory as offering "nothing particularly new or controversial" to an updated view of classical economics.
Nobel prize winning economist Paul Krugman published a book dedicated to attacking the theory, and Reaganomics, under the title "Peddling Prosperity". Mundell in his The Sveriges Riksbank Prize in Economic Sciences in Memory of Alfred Nobel acceptance lecture (awarded for unrelated work in optimum currency area) countered that the success of price stability was proof that the supply-side revolution had worked. The continuing debate over supply-side policies tends to focus on the massive federal and current account deficits, increased income inequality and its failure to promote growth.
In 2006 Sebastian Mallaby of The Washington Post quoted George W. Bush, Dick Cheney, Bill Frist, Chuck Grassley, and Rick Santorum misstating the effect of the Bush Administration's tax cuts. On January 3, 2007, George W. Bush wrote an article claiming "It is also a fact that our tax cuts have fueled robust economic growth and record revenues." Andrew Samwick, who was Chief Economist on Bush's Council of Economic Advisers from 2003-2004 responded to the claim:
You are smart people. You know that the tax cuts have not fueled record revenues. You know what it takes to establish causality. You know that the first order effect of cutting taxes is to lower tax revenues. We all agree that the ultimate reduction in tax revenues can be less than this first order effect, because lower tax rates encourage greater economic activity and thus expand the tax base. No thoughtful person believes that this possible offset more than compensated for the first effect for these tax cuts. Not a single one.
The Congressional Budget Office (CBO) has estimated that extending the Bush tax cuts of 2001-2003 beyond their 2010 expiration would increase deficits by $1.8 trillion dollars over the following decade. The CBO also completed a study in 2005 analyzing a hypothetical 10% income tax cut and concluded that under various scenarios there would be minimal offsets to the loss of revenue. In other words, deficits would increase by nearly the same amount as the tax cut in the first five years, with limited feedback revenue thereafter.
From time to time a politician makes blunt claims that tax cuts increase government revenue (e.g. Mitch McConnell in July 2010 ) However, the Laffer Curve reflects the hypothesis that only cutting tax rates to the right of peak economic performance rate will increase revenues, and that cutting tax rates to the left of the peak rate will decrease revenues.
The paradigm of a tax system which rewards investment over consumption was accepted across the political spectrum, and no plan not rooted in supply-side economic theories has been advanced in the United States since 1982 (with the exception of the Clinton tax increases of 1993)[dubious ] which had any serious chance of passage into law. In 1986, a tax overhaul, described by Mundell as "the completion of the supply-side revolution" was drafted. It included increases in payroll taxes, decreases in top marginal rates, and increases in capital gains taxes. Combined with the mortgage interest deduction and the regressive effects of state taxation, it produces closer to a flat-tax effect. Proponents, such as Mundell and Laffer, point to the dramatic rise in the stock market as a sign that the tax overhaul was effective, although they note that the hike in capital gains may be more trouble than it was worth.
Cutting marginal tax rates can also be perceived as primarily beneficial to the wealthy, which commentators such as Paul Krugman see as politically rather than economically motivated.
The economist John Kenneth Galbraith noted that supply side economics was not a new theory. He wrote, "Mr. David Stockman has said that supply-side economics was merely a cover for the trickle-down approach to economic policy—what an older and less elegant generation called the horse-and-sparrow theory: If you feed the horse enough oats, some will pass through to the road for the sparrows." Galbraith claimed that the horse and sparrow theory was partly to blame for the Panic of 1896.
Notes and references
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- Atkinson, Robert D. Supply-side Follies: Why Conservative Economics Fails, Liberal Economics Falters, and Innovation Economics Is the Answer. Lanham: Rowman & Littlefield, 2006. p. 50. Print.
- Martin, Douglas (2005-08-31). "Jude Wanniski, 69, Journalist Who Coined the Term 'Supply-Side Economics,' Dies". New York Times.
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- Stoking the Beast - Jonathan Rauch
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- Contribution and Benefit Base
- Microsoft Word - treasury dyn anal report jul 24 10am II FINAL.doc
- Treasury Dynamic Scoring Analysis Refutes Claims by Supporters of the Tax Cuts, revised 8/24/06
- Greg Mankiw's Blog: CBO on Supply-side Economics
- "Journal of Public Economics : Dynamic scoring: A back-of-the-envelope guide". ScienceDirect. Retrieved 2009-12-03.
- Papp, TK and Takáts, E. Tax rate cuts and tax compliance—the Laffer curve revisited (PDF). IMF Working Paper.
- See p. 5: "Contradicting the traditional labor supply based explanation of the Laffer effect, measures of labor supply remained mostly unchanged."
- Harper, David. "Understanding Supply-Side Economics".
- Mallaby, Sebastian (2006-05-15). "The Return Of Voodoo Economics". Washington Post.
- Bush, George W. (2007-01-03). "What the Congress Can Do for America". Wall Street Journal.
- "Vox Baby: A New Year's Plea".
- Analysis of President's Budget Table 1-3 Page 6
- CBO Study Grey Box Page 1
- Montopoli, Brian (2010-07-14). "GOP Argues Tax Cuts Increase Government Revenue". CBS News.
- Krugman, Paul (2005-12-23). "The Tax Cut Zombies". New York Times.
- Krugman, Paul R. (2009). The Return Of Depression Economics And The Crisis Of 2008. W.W. Norton ISBN 978-0-393-07101-6. p. 192.
- Galbraith, John Kenneth (1982-02-04). "Recession Economics". New York Review of Books.
- Gwartney, James D. (2002). "Supply-Side Economics". The Concise Encyclopedia of Economics. The Liberty Fund. Retrieved 2008-02-26.
- The Logic of the Laffer Curve
- http://www.robertmundell.net/NobelLecture/nobel5.asp Portion of Mundell's Nobel Prize Lecture (awarded for unrelated work in optimum currency area) claiming that Supply Side Economics was responsible for growth, price stability and the collapse of the Soviet Union.
-  Supply Side Library. A collection of essays and studies by Robert Mundell, Paul Craig Roberts, Stephen Entin and Alan Reynolds.
- SSU Summer Session Lesson #8 A Supply-Side History from wanniski.com