David Ricardo

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David Ricardo
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| birth_place = London, Englanddf=y09177218}}| death_place = Gatcombe Park, Gloucestershire, England| nationality = BritishWhigs (British political party)>WhigPriscilla Anne Wilkinson1823}}David Ricardo (the younger)>David the YoungerBusinessman|economist}}


Jeremy Bentham{{·}}Robert Torrens (economist)>TorrensRicardian socialism>Ricardian Socialists{{·}} Henry George{{·}} John Stuart Mill{{·}} Piero Sraffa>Sraffa{{·}}Knut Wicksell{{·}}Robert J. Barro>Barro{{·}} John Ramsay McCulloch{{·}}Karl Marx{{·}} Franz OppenheimerRicardian equivalence, labour theory of value, comparative advantage, Diminishing returns>law of diminishing returns, Ricardian socialism, Economic rentMiller, Roger LeRoy. Economics Today. Fifteenth Edition. Boston, MA: Pearson Education. p. 559}}}}David Ricardo (18 April 1772 – 11 September 1823) was a British political economist, one of the most influential of the classical economists along with Thomas Malthus, Adam Smith and James Mill.Sowell, Thomas (2006). On classical economics. New Haven, CT: Yale University Pressweblink

Personal life

{{more citations needed section|date=June 2013}}Born in London, England, Ricardo was the third of 17 children of a Sephardic Jewish family of Portuguese origin who had recently relocated from the Dutch Republic.JOURNAL, The Dutch and Portuguese-Jewish background of David Ricardo, Arnold, Heertje, European Journal of the History of Economic Thought, 2004, 11, 2, 281–94, 10.1080/0967256042000209288, His father, Abraham Ricardo, was a successful stockbroker. He began working with his father at the age of 14. At age 21, Ricardo eloped with a Quaker, Priscilla Anne Wilkinson, and, against his father's wishes, converted to the Unitarian faith.Francisco Solano Constancio, Paul Henri Alcide Fonteyraud. 1847. Œuvres complètes de David Ricardo, Guillaumin, (pp. v–xlviii): A part sa conversion au Christianisme et son mariage avec une femme qu'il eut l'audace grande d'aimer malgré les ordres de son père This religious difference resulted in estrangement from his family, and he was led to adopt a position of independence.Ricardo, David. 1919. Principles of Political Economy and Taxation. G. Bell, p. lix: "by reason of a religious difference with his father, to adopt a position of independence at a time when he should have been undergoing that academic training" His father disowned him and his mother apparently never spoke to him again.{{Citation |author=Sraffa, Piero |author2=David Ricardo |title=The Works and Correspondence of David Ricardo: Volume 10, Biographical Miscellany |publisher=Cambridge University Press |location=Cambridge, UK |year=1955 |page=434 |isbn=0-521-06075-3}}Following this estrangement he went into business for himself with the support of Lubbocks and Forster, an eminent banking house. He made the bulk of his fortune as a result of speculation on the outcome of the Battle of Waterloo. The Sunday Times reported in Ricardo's obituary, published on 14 September 1823, that during the Battle of Waterloo Ricardo "netted upwards of a million sterling", a huge sum at the time. He immediately retired, his position on the floor no longer tenable, and subsequently purchased Gatcombe Park, an estate in Gloucestershire, now owned by Princess Anne, the Princess Royal and retired to the country. He was appointed High Sheriff of Gloucestershire for 1818–19.{{London Gazette|issue=17326|page=188|date=24 January 1818}}In August 1818 he bought Lord Portarlington's seat in Parliament for £4,000, as part of the terms of a loan of £25,000. His record in Parliament was that of an earnest reformer. He held the seat until his death five years later.Ricardo was a close friend of James Mill. Other notable friends included Jeremy Bentham and Thomas Malthus, with whom Ricardo had a considerable debate (in correspondence) over such things as the role of landowners in a society. He also was a member of Malthus' Political Economy Club, and a member of the King of Clubs. He was one of the original members of The Geological Society. His youngest sister was author Sarah Ricardo-Porter (e.g., Conversations in Arithmetic).

Parliamentary record

He voted with opposition in support of the liberal movements in Naples, 21 Feb, and Sicily, 21 June, and for inquiry into the administration of justice in Tobago, 6 June. He divided for repeal of the Blasphemous and Seditious Libels Act, 8 May, inquiry into the Peterloo massacre, 16 May, and abolition of the death penalty for forgery, 25 May, 4 June 1821.He adamantly supported the implementation of free trade. He voted against renewal of the sugar duties, 9 Feb, and objected to the higher duty on East as opposed to West Indian produce, 4 May 1821. He opposed the timber duties. He voted silently for parliamentary reform, 25 Apr 3 June, and spoke in its favour at the Westminster anniversary reform dinner, 23 May 1822. He again voted for criminal law reform, 4 June.His friend John Louis Mallett commented: " … he meets you upon every subject that he has studied with a mind made up, and opinions in the nature of mathematical truths. He spoke of parliamentary reform and ballot as a man who would bring such things about, and destroy the existing system tomorrow, if it were in his power, and without the slightest doubt on the result … It is this very quality of the man’s mind, his entire disregard of experience and practice, which makes me doubtful of his opinions on political economy."

Death and legacy

Ten years after retiring and four years after entering Parliament Ricardo died from an infection of the middle ear that spread into the brain and induced septicaemia. He was 51.He had eight children, including three sons, of whom Osman Ricardo (1795–1881; MP for Worcester 1847–1865) and another David Ricardo (1803–1864, MP for Stroud 1832–1833), became members of parliament, while the third, Mortimer Ricardo, served as an officer in the Life Guards and was a deputy lieutenant for Oxfordshire.WEB,weblink RICARDO, David (1772–1823), of Gatcombe Park, Minchinhampton, Glos. and 56 Upper Brook Street, Grosvenor Square, Mdx., History of Parliament Online, 18 September 2013, Ricardo is buried in an ornate grave in the churchyard of Saint Nicholas in Hardenhuish, now a suburb of Chippenham, Wiltshire.{{Find a Grave|12746052}} At the time of his death his fortune was estimated at about £600,000.


He wrote his first economics article at age 37, firstly in The Morning Chronicle advocating reduction in the note-issuing of the Bank of England and then publishing "The High Price of Bullion, a Proof of the Depreciation of Bank Notes" in 1810.BOOK, Hayek, Friedrich, The Trend of Economic Thinking, The Restriction Period, 1797–1821, and the Bullion Debate, 1991,weblink 978-0865977426, 199–200, He was also an abolitionist, speaking at a meeting of the Court of the East India Company in March 1823, where he said he regarded slavery as a stain on the character of the nation.BOOK, King, John, David Ricardo, 2013, Palgrave Macmillan, 48, His sister, Hanna, had married David Samuda (1776–1824) who came from a slave-owning family with a substantial number of slaves in Jamaica.WEB, Okker, Rudolph, Re: Samuda,weblink Gen Forum, 11 September 2014,

Value theory

Ricardo's most famous work is his Principles of Political Economy and Taxation (1817). He advanced a labor theory of value:Ricardo, David (1817) On the Principles of Political Economy and Taxation. Piero Sraffa (Ed.) Works and Correspondence of David Ricardo, Volume I, Cambridge University Press, 1951, p. 11.The value of a commodity, or the quantity of any other commodity for which it will exchange, depends on the relative quantity of labour which is necessary for its production, and not on the greater or less compensation which is paid for that labour.Ricardo's note to Section VI:Ricardo, David (1817) On the Principles of Political Economy and Taxation. Piero Sraffa (Ed.) Works and Correspondence of David Ricardo, Volume I, Cambridge University Press, 1951, p. 47.Mr. Malthus appears to think that it is a part of my doctrine, that the cost and value of a thing be the same;—it is, if he means by cost, "cost of production" including profit.


Ricardo contributed to the development of theories of rent, wages, and profits. He defined rent as "the difference between the produce obtained by the employment of two equal quantities of capital and labor." Ricardo believed that the process of economic development, which increased land utilization and eventually led to the cultivation of poorer land, principally benefited landowners. According to Ricardo, such premium over "real social value" that is reaped due to ownership constitutes value to an individual but is at bestOn 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...." a paper monetary return to "society". The portion of such purely individual benefit that accrues to scarce resources Ricardo labels "rent".

Ricardo's theories of wages and profits

In his Theory of Profit, Ricardo stated that as real wages increase, real profits decrease because the revenue from the sale of manufactured goods is split between profits and wages. He said in his Essay on Profits, "Profits depend on high or low wages, wages on the price of necessaries, and the price of necessaries chiefly on the price of food."

Ricardian theory of international trade

Between 1500 and 1750 most economists advocated Mercantilism which promoted the idea of international trade for the purpose of earning bullion by running a trade surplus with other countries. Ricardo challenged the idea that the purpose of trade was merely to accumulate gold or silver. With "comparative advantage" Ricardo argued in favour of industry specialisation and free trade. He suggested that industry specialization combined with free international trade always produces positive results. This theory expanded on the concept of absolute advantage.Ricardo suggested that there is mutual national benefit from trade even if one country is more competitive in every area than its trading counterpart and that a nation should concentrate resources only in industries where it has a comparative advantage,{{citation |title=The Trade Question |last=Roberts |first=Paul Craig |periodical=The Washington Times |publication-date=28 August 2003}} that is in those industries in which it has the greatest competitive edge. Ricardo suggested that national industries which were, in fact, profitable and internationally competitive should be jettisoned in favour of the most competitive industries, the assumption being that subsequent economic growth would more than offset any economic dislocation which would result from closing profitable and competitive national industries.Ricardo attempted to prove theoretically that international trade is always beneficial.Ricardo, David (1817) On the Principles of Political Economy and Taxation. Piero Sraffa (Ed.) Works and Correspondence of David Ricardo, Volume I, Cambridge University Press, 1951, p. 135. Paul Samuelson called the numbers used in Ricardo's example dealing with trade between England and Portugal the "four magic numbers".Samuelson, Paul A. (1972), "The Way of an Economist." Reprinted in The Collected Papers of Paul A. Samuelson. Ed. R. C. Merton. Cambridge: Cambridge MIT Press. p. 378. "In spite of the fact that the Portuguese could produce both cloth and wine with less amount of labor, Ricardo suggested that both countries would benefit from trade with each other".As for recent extensions of Ricardian models, see Ricardian trade theory extensions.

Comparative advantage

Ricardo's theory of international trade was reformulated by John Stuart Mill.Mill, J. S. (1844) Essays on some unsettled questions of political economy. London, John W. Parker; Mill, J. S. (1848) The principles of political economy. (vol. I and II) Boston: C.C.Little & J. Brown. The term "comparative advantage" was started by J. S. Mill and his contemporaries.John Stuart Mill started a neoclassical turn of international trade theory, i.e. his formulation was inherited by Alfred Marshall and others and contributed to the resurrection of anti-Ricardian concept of law of supply and demand and induce the arrival neoclassical theory of value.Shiozawa, Y. (2017) An Origin of the Neoclassicla Revolutions: Mill's "Reversion" and its consequences. In Shiozawa, Oka,and Tabuchi (eds.) A New Construction of Ricardian Theory of International Values, Tokyo: Springer Japan, Chapter 7 pp.191–243.

New interpretation

Ricardo's four magic numbers has long been interpreted as comparison of two ratios of labor input coefficients. This interpretation is now considered as erroneous. This point was first pointed by Roy J. RuffinRuffin, R.J. (2002) David Ricardo's discovery of comparative advantage. History of Political Economy 34(4): 727–748. in 2002 and examined and explained in detail in Andrea ManeschiManeschi, A. (2004) The true meaning of David Ricardo's fur magic numbers. Journal of International Economics 62(2): 433–443. in 2004. This is now known as new interpretation but it has been mentioned by P. Sraffa in 1930 and by Kenzo Yukizawa in 1974.Tabuchi, T. (2017) Yukizawa's interpretation of Ricardo's `theory of comparative cost`. In Senga, Fujimoto, and Tabuchi (Eds.) Ricardo and International Trade, London and New York; Routledge, Chapter 4, pp.48–59. The new interpretation affords totally new reading of Ricardo's Principles of Political Economy and Taxation with regards to trade theory.Faccarello, G. (2017) A calm investigation into Mr. Ricardo's principle of international trade. In Senga, Fujimoto, and Tabuchi (Eds.) Ricardo and International Trade, London and New York; Routledge. Tabuchi, T. (2017) Comparative Advantage in the Light of the Old Value Theories. In Shiozawa, Oka,and Tabuchi (eds.) A New Construction of Ricardian Theory of International Values, Tokyo: Springer Japan, Chapter 9 pp.265–280.


Like Adam Smith, Ricardo was an opponent of protectionism for national economies, especially for agriculture. He believed that the British "Corn Laws"—tariffs on agricultural products—ensured that less-productive domestic land would be harvested and rents would be driven up {{harv|Case|Fair|1999|pp=812, 813}}. Thus, profits would be directed toward landlords and away from the emerging industrial capitalists. Ricardo believed landlords tended to squander their wealth on luxuries, rather than invest. He believed the Corn Laws were leading to the stagnation of the British economy.Letter of Mill cited in The works and correspondence of David Ricardo. : Volume 9, Letters July 1821–1823 (Cambridge, UK, 1952) In 1846, his nephew John Lewis Ricardo, MP for Stoke-upon-Trent, advocated free trade and the repeal of the Corn Laws.Modern empirical analysis of the Corn Laws yield mixed results.JOURNAL, 10.1016/0014-4983(90)90007-L, The impact of the Corn Laws just prior to repeal, Explorations in Economic History, 27, 2, 123, 1990, Williamson, J. G., Parliament repealed the Corn Laws in 1846.

Technological change

Ricardo was concerned about the impact of technological change on labor in the short-term.JOURNAL, Hollander, Samuel, 2019, Retrospectives Ricardo on Machinery,weblink Journal of Economic Perspectives, 33, 2, 229–242, 10.1257/jep.33.2.229, 0895-3309, In 1821, he wrote that he had become "convinced that the substitution of machinery for human labour, is often very injurious to the interests of the class of labourers," and that "the opinion entertained by the labouring class, that the employment of machinery is frequently detrimental to their interests, is not founded on prejudice and error, but is conformable to the correct principles of political economy."

Criticism of the Ricardian theory of trade

Ricardo himself was the first to recognize that comparative advantage is a domain-specific theory, meaning that it only applies when certain conditions are met. Ricardo noted that the theory only applies in situations where capital is immobile. Regarding his famous example, he wrote:it would undoubtedly be advantageous to the capitalists [and consumers] of England… [that] the wine and cloth should both be made in Portugal [and that] the capital and labour of England employed in making cloth should be removed to Portugal for that purpose.BOOK, On the Principles of Political Economy and Taxation, Ricardo, David, John Murray, 1821, 7.19, Ricardo recognized that applying his theory in situations where capital was mobile would result in offshoring, and therefore economic decline and job loss. To correct for this, he argued that (i) most men of property [will be] satisfied with a low rate of profits in their own country, rather than seek[ing] a more advantageous employment for their wealth in foreign nations, and (ii) that capital was functionally immobile.Ricardo's argument in favour of free trade has also been attacked by those who believe trade restriction can be necessary for the economic development of a nation. Utsa Patnaik claims that Ricardian theory of international trade contains a logical fallacy. Ricardo assumed that in both countries two goods are producible and actually are produced, but developed and underdeveloped countries often trade those goods which are not producible in their own country. In these cases, one cannot define which country has comparative advantage.BOOK, Uta, Patnaik, 2005, Ricardo's Fallacy/ Mutual Benefit from Trade Based on Comparative Costs and Specialization?, Jomo, K. S., The Pioneers of Development Economics: Great Economists on Development, Zed books, London and New York, 31–41, 81-85229-99-6, Critics also argue that Ricardo's theory of comparative advantage is flawed in that it assumes production is continuous and absolute. In the real world, events outside the realm of human control (e.g. natural disasters) can disrupt production. In this case, specialisation could cripple a country that depends on imports from foreign, naturally disrupted countries. For example, if an industrially based country trades its manufactured goods with an agrarian country in exchange for agricultural products, a natural disaster in the agricultural country (e.g. drought) may cause an industrially based country to starve.As Joan Robinson pointed out, following the opening of free trade with England, Portugal endured centuries of economic underdevelopment: "the imposition of free trade on Portugal killed off a promising textile industry and left her with a slow-growing export market for wine, while for England, exports of cotton cloth led to accumulation, mechanisation and the whole spiralling growth of the industrial revolution". Robinson argued that Ricardo's example required that economies were in static equilibrium positions with full employment and that there could not be a trade deficit or a trade surplus. These conditions, she wrote, were not relevant to the real world. She also argued that Ricardo's math did not take into account that some countries may be at different levels of development and that this raised the prospect of 'unequal exchange' which might hamper a country's development, as we saw in the case of Portugal.BOOK, Robinson, Joan, Aspects of Development and Underdevelopment, 1979, Cambridge University Press, Cambridge, 0521226376, 103, The development economist Ha-Joon Chang challenges the argument that free trade benefits every country:Ricardo’s theory is absolutely right—within its narrow confines. His theory correctly says that, accepting their current levels of technology as given, it is better for countries to specialize in things that they are relatively better at. One cannot argue with that. His theory fails when a country wants to acquire more advanced technologies—that is, when it wants to develop its economy. It takes time and experience to absorb new technologies, so technologically backward producers need a period of protection from international competition during this period of learning. Such protection is costly, because the country is giving up the chance to import better and cheaper products. However, it is a price that has to be paid if it wants to develop advanced industries. Ricardo’s theory is, thus seen, for those who accept the status quo but not for those who want to change it.Chang, Ha-Joon (2007), "Bad Samaritans", Chapter 2, pp. 30–31.

Ricardian equivalence

Another idea associated with Ricardo is Ricardian equivalence, an argument suggesting that in some circumstances a government's choice of how to pay for its spending (i.e., whether to use tax revenue or issue debt and run a deficit) might have no effect on the economy. This is due to the fact the public saves its excess money to pay for expected future tax increases that will be used to pay off the debt. Ricardo notes that the proposition is theoretically implied in the presence of intertemporal optimisation by rational tax-payers: but that since tax-payers do not act so rationally, the proposition fails to be true in practice. Thus, while the proposition bears his name, he does not seem to have believed it. Economist Robert Barro is responsible for its modern prominence.

Influence and intellectual legacy

David Ricardo's ideas had a tremendous influence on later developments in economics. US economists rank Ricardo as the second most influential economic thinker, behind Adam Smith, prior to the twentieth century.Davis, William L., Bob Figgins, David Hedengren, and Daniel B. Klein. "Economics Professors' Favorite Economic Thinkers, Journals and Blogs (along with Party and Policy Views)," Econ Journal Watch 8(2): 126–46, May 2011 weblink.Ricardo became the theoretical father of classical political economy. However, Schumpeter coined an expression Ricardian vice, which indicates that rigorous logic does not provide a good economic theory.Schumpeter, History of Economic Analysis, (published posthumously, ed. Elisabeth Boody Schumpeter), 1954. pp. 569, 1171. Schumpeter also criticized J. M. Keynes for committing the same Ricardian vice. This criticism applies also to most neoclassical theories, which make heavy use of mathematics, but are, according to him, theoretically unsound, because the conclusion being drawn does not logically follow from the theories used to defend it.{{Citation needed|date=January 2010}}

Ricardian socialists

Ricardo's writings fascinated a number of early socialists in the 1820s, who thought his value theory had radical implications. They argued that, in view of labor theory of value, labor produces the entire product, and the profits capitalists get are a result of exploitations of workers.Landreth Colander 1989 History of Economic Thought Second Edition, p.137. These include Thomas Hodgskin, William Thompson, John Francis Bray, and Percy Ravenstone.


Georgists believe that rent, in the sense that Ricardo used, belongs to the community as a whole. Henry George was greatly influenced by Ricardo, and often cited him, including in his most famous work, Progress and Poverty from 1879. In the preface to the fourth edition, he wrote: "What I have done in this book, if I have correctly solved the great problem I have sought to investigate, is, to unite the truth perceived by the school of Smith and Ricardo to the truth perceived by the school of Proudhon and Lasalle; to show that laissez faire (in its full true meaning) opens the way to a realization of the noble dreams of socialism; to identify social law with moral law, and to disprove ideas which in the minds of many cloud grand and elevating perceptions."George, Henry, Progress and Poverty. Preface to the 4th Edition, November 1880.


After the rise of the 'neoclassical' school, Ricardo's influence declined temporarily. It was Piero Sraffa, the editor of the Collected Works of David RicardoPiero Sraffa and M.H. Dobb, editors (1951–1973). The Works and Correspondence of David Ricardo. Cambridge University Press, 11 volumes. and the author of seminal Production of Commodities by Means of Commodities,Sraffa, Piero 1960, Production of Commodities by Means of Commodities: Prelude to a Critique of Economic Theory. Cambridge University Press. who resurrected Ricardo as the originator of another strand of economics thought, which was effaced with the arrival of the neoclassical school. The new interpretation of Ricardo and Sraffa's criticism against the marginal theory of value gave rise to a new school, now named neo-Ricardian or Sraffian school. Major contributors to this school includes Luigi Pasinetti (1930–), Pierangelo Garegnani (1930–2011), Ian Steedman (1941–), Geoffrey Harcourt (1931–), Heinz Kurz (1946–), Neri Salvadori (1951–), Pier Paolo Saviotti (–) among others. See also Neo-Ricardianism. The Neo-Ricardian school is sometimes seen to be a component of Post-Keynesian economics.

Neo-Ricardian trade theory

Inspired by Piero Sraffa, a new strand of trade theory emerged and was named neo-Ricardian trade theory. The main contributors include Ian Steedman and Stanley Metcalfe. They have criticised neoclassical international trade theory, namely the Heckscher–Ohlin model on the basis that the notion of capital as primary factor has no method of measuring it before the determination of profit rate (thus trapped in a logical vicious circle).BOOK, Steedman, Ian, 1979, Fundamental Issues in Trade Theory, London, MacMillan, 0-333-25834-7, BOOK, Steedman, Ian, Trade Amongst Growing Economies, Cambridge University Press, Cambridge, UK, 1979, {{Page needed, April 2011, |isbn=0-521-22671-6 |url-access=registration |url= }} This was a second round of the Cambridge capital controversy, this time in the field of international trade.BOOK, Chris, Edwards, 1985, The Fragmented World: Competing Perspectives on Trade, Money, and Crisis, London and New York, Methuen & Co., § 3.2 The 'Sraffian' Approach to Trade Theory, 48–51, 0-416-73390-5, Depoortère and Ravix judge that neo-Ricardian contribution failed without giving effective impact on neoclassical trade theory, because it could not offer "a genuine alternative approach from a classical point of view."Christophe Depoortère, Joël Thomas Ravix 2015 The classical theory of international trade after Sraffa. Cahiers d'économie Politique / Papers in Political Economy (69): 203–34, February 2015.

Evolutionary growth theory

Several distinctive groups have sprung out of the neo-Ricardian school. One is the evolutionary growth theory, developed notably by Luigi Pasinetti, J.S. Metcalfe, Pier Paolo Saviotti, and Koen Frenken and others.Pasinetti, Luisi 1981 Structural change and economic growth, Cambridge University Press. J.S. Metcalfe and P.P. Saviotti (eds.), 1991, Evolutionary Theories of Economic and Technological Change, Harwood, 275 pages. J.S. Metcalfe 1998, Evolutionary Economics and Creative Destruction, Routledge, London. Frenken, K., Van Oort, F.G., Verburg, T., Boschma, R.A. (2004). Variety and Regional Economic Growth in the Netherlands – Final Report (The Hague: Ministry of Economic Affairs), 58 p. (pdf){{citation |doi=10.1007/s00191-007-0081-5 |title=Export variety and the economic performance of countries |year=2008 |last1=Saviotti |first1=Pier Paolo |last2=Frenken |first2=Koen |journal=Journal of Evolutionary Economics |volume=18 |issue=2 |pages=201–18}}Pasinetti{{citation |author=Pasinetti, Luigi L. |title=Structural change and economic growth: a theoretical essay on the dynamics of the wealth of nations |publisher=Cambridge University Press |location=Cambridge, UK |year=1981 |pages={{Page needed |date=April 2011}} |isbn=0-521-27410-9 }}{{citation |author=Pasinetti, Luigi L. |title=Structural economic dynamics: a theory of the economic consequences of human learning |publisher=Cambridge University Press |location=Cambridge, UK |year=1993 |pages={{Page needed |date=April 2011}} |isbn=0-521-43282-0 }} argued that the demand for any commodity came to stagnate and frequently decline, demand saturation occurs. Introduction of new commodities (goods and services) is necessary to avoid economic stagnation.

Contemporary theories

Ricardo's idea was even expanded to the case of continuum of goods by Dornbusch, Fischer, and Samuelson{{citation |jstor=1828066 |pages=823–39 |last1=Dornbusch |first1=R. |last2=Fischer |first2=S. |last3=Samuelson |first3=P. A. |title=Comparative Advantage, Trade, and Payments in a Ricardian Model with a Continuum of Goods |volume=67 |issue=5 |journal=The American Economic Review |year=1977 |url= |format=PDF |url-status=dead |archiveurl= |archivedate=16 May 2011 }} This formulation is employed for example by Matsuyama{{Citation |last1=Matsuyama |first1=K. |year=2000 |title=A Ricardian Model with a Continuum of Goods under Nonhomothetic Preferences: Demand Complementarities, Income Distribution, and North–South Trade |journal=Journal of Political Economy |volume=108 |issue=6 |pages=1093–120 |url= |format=PDF |doi=10.1086/317684 |postscript=.}} and others.Ricardian trade theory ordinarily assumes that the labour is the unique input. This is a deficiency as intermediate goods are a great part of international trade. The situation changed after the appearance of (:ja:塩沢由典|Yoshinori Shiozawa)'s work of 2007.JOURNAL, Shiozawa, Y., 2007, A New Construction of Ricardian Trade Theory: A Multi-country, Multi-commodity Case with Intermediate Goods and Choice of Production Techniques, Evolutionary and Institutional Economics Review, 3, 2, 141–87, 10.14441/eier.3.141, He has succeeded to incorporate traded input goods in his model.Y. Shiozawa (2017) The new theory of international values: An overview. Shiozawa, Oka and Tabuchi (eds.) A New Construction of Ricardian Theory of International Values. Singapore: Springer. Chapter 1, pp.3–73.Yeats found that 30% of world trade in manufacturing is intermediate inputs.BOOK, Yeats, A., Just How Big is Global Production Sharing?, Arndt, S., H., Kierzkowski, 2001, Fragmentation: New Production Patterns in the World Economy, Oxford University Press, Oxford, 0-19-924331-X, Bardhan and Jafee found that intermediate inputs occupy 37 to 38% in the imports to the US for the years from 1992 to 1997, whereas the percentage of intrafirm trade grew from 43% in 1992 to 52% in 1997.BOOK, Bardhan, Ashok Deo, Jaffee, Dwight, 2004, On Intra-Firm Trade and Multinationals: Foreign Outsourcing and Offshoring in Manufacturing, Monty, Graham, Robert, Solow, The Role of Foreign Direct Investment and Multinational Corporations in Economic Development, {{verify source|date=June 2019}}

Unequal exchange

Chris Edward includes Emmanuel's unequal exchange theory among variations of neo-Ricardian trade theory.Chris Edwards 1985 The Fragmented World: Competing Perspectives on Trade, Money and Crisis, London and New York: Methuen. Chapter 4. Arghiri Emmanuel argued that the Third World is poor because of the international exploitation{{clarify|date=January 2015}} of labour.{{citation |last=Emmanuel |first=Arghiri |title=Unequal exchange; a study of the imperialism of trade |publisher=Monthly Review Press |location=New York |year=1972 |pages={{Page needed |date=April 2011}} |isbn=0-85345-188-5 }}{{verify source|date=January 2015}}The unequal exchange theory of trade has been influential to the (new) dependency theory.{{citation |doi=10.1016/0305-750X(78)90051-7 |title=Dependency: A formal theory of underdevelopment or a methodology for the analysis of concrete situations of underdevelopment? |year=1978 |last1=Palma |first1=G |journal=World Development |volume=6 |issue=7–8 |pages=881–924}}


(File:Ricardo - Opere, 1852 - 5181784.tif|thumb|Works, 1852)Ricardo's publications included:
  • The High Price of Bullion, a Proof of the Depreciation of Bank Notes (1810), which advocated the adoption of a metallic currency.
  • Essay on the Influence of a Low Price of Corn on the Profits of Stock (1815), which argued that repealing the Corn Laws would distribute more wealth to the productive members of society.
  • On the Principles of Political Economy and Taxation (1817), an analysis that concluded that land rent grows as population increases. It also clearly laid out the theory of comparative advantage, which argued that all nations could benefit from free trade, even if a nation was less efficient at producing all kinds of goods than its trading partners.
His works and writings were collected in BOOK, The works and correspondence of David Ricardo, Ricardo, David, 1981, Cambridge University Press, 0521285054, 1st paperback, Cambridge, 10251383,





External links

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  • {{Internet Archive author |sname=David Ricardo}}
  • {{Hansard-contribs | mr-david-ricardo-1 | David Ricardo }}
  • weblink" title="">Biography at New School University
  • weblink" title="">Biography at EH.Net Encyclopedia of Economic History
  • Ricardo on Value: the Three Chapter Ones. A presentation tracing the changes in the Principles' (University of Southampton).
{{Classical economists}}{{History of economic thought}}{{Property navbox}}{{Authority control}}{{Use British English|date=August 2010}}

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