Adam Smith

Adam Smith was a Scottish moral philosopher and political economist of the Enlightenment, regarded as the father of modern economics. Born in Kirkcaldy, Fife, in 1723 and educated at Glasgow and Balliol College, Oxford, he held the Chair of Moral Philosophy at the University of Glasgow. His first major work, The Theory of Moral Sentiments (1759), grounded human ethics in "sympathy" and the impartial spectator, while his magnum opus, An Inquiry into the Nature and Causes of the Wealth of Nations (1776), founded classical political economy. Published in the same year as the American Declaration of Independence, it furnished the intellectual case against mercantilism, the prevailing doctrine that national wealth lay in accumulated bullion and protected trade.

Smith's central insight is that self-interested individuals operating in competitive markets are guided by an "invisible hand" to promote the public good unintentionally. He argued that the division of labour—illustrated by his famous pin factory, where specialisation multiplied output many times over—is the engine of productivity and economic growth, limited only by the extent of the market. He advanced the labour theory of value, distinguished value-in-use from value-in-exchange (the diamond–water paradox), and held that prices gravitate toward a "natural price." Smith advocated laissez-faire and free trade against tariffs and monopolies, yet his liberalism was qualified: he endorsed a state role in defence, justice, public works, education, and certain regulations, and was sharply critical of merchants' tendency to conspire against the public. His four canons of taxation—equality, certainty, convenience, and economy—remain a fiscal touchstone.

Smith's legacy runs through the classical school he inspired—David Ricardo, Thomas Malthus, John Stuart Mill—and into the neoclassical and modern free-market traditions later associated with Milton Friedman and the Chicago school. His ideas underpinned 19th-century British free-trade policy, including the repeal of the Corn Laws in 1846, and the doctrines of comparative advantage that justify the WTO trading order. As of 2026 he remains foundational to economic liberalism, invoked in debates on globalisation, deregulation, and the state-versus-market balance; his portrait appeared on the Bank of England £20 note from 2007 to 2020. Critics from Karl Marx onward challenged his value theory and the distributional consequences of unfettered markets, making him a pivot point in the history of economic thought.

For competitive examinations, Adam Smith is tested principally in the Economy and History of Economic Thought segments. UPSC General Studies Paper III and the Economics optional, the FSOT economics component, and CSS/BCS papers on economics and political theory expect candidates to identify him as the father of economics, explain the "invisible hand," the division of labour, and the canons of taxation, and to contrast classical laissez-faire with mercantilism and Keynesian intervention. Typical question angles ask candidates to relate Smithian free-market doctrine to contemporary liberalisation (in India, the 1991 reforms), to evaluate the invisible hand against market-failure theory, or to trace the evolution from Smith to Ricardo and Keynes. Precision on the 1776 date and the two-book corpus is frequently rewarded.