The General Theory of Employment, Interest and Money

The General Theory of Employment, Interest and Money
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Title	The General Theory of Employment, Interest and Money
Author	John Maynard Keynes
Country	United Kingdom
Language	English
Subject	Macroeconomics
Publisher	Macmillan
Pub date	1936
Pages	383
Preceded by	A Tract on Monetary Reform
Followed by	How to Pay for the War

The General Theory of Employment, Interest and Money is a 1936 book by John Maynard Keynes that transformed macroeconomics, reshaped public policy in the United Kingdom, United States, and beyond, and influenced institutions such as the International Monetary Fund, the World Bank, and the United Nations. Written during the aftermath of the Great Depression and amid debates involving figures like Alfred Marshall, Lionel Robbins, Friedrich Hayek, Milton Friedman, and Joseph Schumpeter, the work spurred new schools of thought embodied by the Keynesian economics movement, the Bretton Woods Conference, and later responses such as New Keynesian economics and Monetarism.

Background and Context

Keynes composed the book in the milieu of the Great Depression, the aftermath of World War I, and the policy failures surrounding the Gold Standard, the Treaty of Versailles, and the interwar financial crises that involved actors like the Bank of England, the Federal Reserve System, and national treasuries of the United Kingdom and the United States. Intellectual antecedents include debates between Alfred Marshall and Thomas Malthus-influenced critics, exchanges with Arthur Pigou, controversies with Lionel Robbins and Friedrich Hayek, and contemporary discussions at institutions such as Cambridge University, the Royal Economic Society, and the Lloyd George administration. The book responded to policy events including the 1931 British banking crisis, the Smoot–Hawley Tariff Act, and the collapse of international trade that entangled actors like Herbert Hoover and Franklin D. Roosevelt.

Publication and Reception

Published by Macmillan Publishers in 1936, the book immediately generated responses from contemporaries such as Arthur Pigou, Alfred Marshall-aligned scholars, François Quesnay-inspired classical economists, and critics like Ludwig von Mises and Friedrich Hayek. It influenced policymakers at the Bretton Woods Conference, advisers to Franklin D. Roosevelt, ministers in the United Kingdom including Winston Churchill-era figures, and economists at the International Labour Organization and the League of Nations. Academic reception ranged from endorsement by members of the Cambridge School and proponents in the United States such as Harold Hotelling to challenges from the Chicago School and later proponents like Milton Friedman, with debates playing out in journals associated with the Royal Economic Society and the American Economic Association.

Key Concepts and Theoretical Framework

Keynes advanced concepts including the propensity to consume, liquidity preference, marginal efficiency of capital, and effective demand, engaging prior work by John Stuart Mill, David Ricardo, Adam Smith, and Thomas Hobbes-era political economy traditions. He reinterpreted employment determination through aggregate demand dynamics in contrast to classical positions associated with Adam Smith and David Ricardo, and he integrated expectations theory that echoes concerns raised by Joseph Schumpeter and Frank Knight. The text foregrounds the role of investment governed by business expectations similar to topics later pursued by Kalecki and Hyman Minsky, and it situates interest rates within a liquidity preference schedule rather than purely in terms of savings-investment equilibria defended by Alfred Marshall-influenced orthodoxy.

Methodology and Mathematical Formulation

Although intentionally prose-oriented, Keynes employed formal reasoning that engaged mathematical treatments reminiscent of analyses by Leon Walras, Irving Fisher, and Eugen Slutsky, while resisting full mathematization favored by scholars like Paul Samuelson and John Hicks. Subsequent formalizations—such as the IS–LM model developed by John Hicks and the aggregative models advanced by Paul Samuelson, Richard Kahn, and Roy Harrod—translated Keynesian notions into systems of equations referencing aggregate demand, the money supply as treated by Milton Friedman and Irving Fisher, and multiplier concepts tracing to François Quesnay's tableau économique. Later extensions by Trygve Haavelmo and the Cowles Commission used econometric methods to estimate parameters implicit in Keynes's prose.

Policy Implications and Influence

Keynes's prescriptions promoted active fiscal policy, countercyclical spending, and public works programs as practiced in New Deal initiatives under Franklin D. Roosevelt, postwar reconstruction plans overseen by the Marshall Plan, and social welfare policies enacted by governments such as Clement Attlee's administration in the United Kingdom. The book influenced institutional reform efforts at the International Monetary Fund, the World Bank, central banking practice at the Federal Reserve System and the Bank of England, and macroeconomic stabilization frameworks adopted by countries in Europe, Japan, and Canada. Keynesian policy debates intersected with fiscal conservatism advocated by figures like Warren Buffett-adjacent commentators and monetarist prescriptions promoted by Milton Friedman and the Chicago School.

Criticisms and Debates

Critics ranged from classical liberals such as Friedrich Hayek and Ludwig von Mises to later monetarists like Milton Friedman and methodological skeptics including Karl Popper-influenced philosophers and members of the Austrian School. Debates targeted Keynes's treatment of expectations, the stability of multiplier effects, the empirical content of liquidity preference, and normative implications for democratic institutions cited by commentators in The Times, journals of the American Economic Association, and pamphlets circulated among Labour Party and Conservative Party policymakers. Subsequent controversies culminated in syntheses like New Keynesian economics and critiques embodied by Public Choice theory proponents including James Buchanan and Gordon Tullock, while historiographical disputes invoked scholars such as Robert Skidelsky and Donald Moggridge.

Category:Macroeconomic theory