# John Maynard Keynes John Maynard Keynes (1883–1946) was the British economist whose 1936 book *The General Theory of Employment, Interest and Money* refounded macroeconomics around the insight that **aggregate demand can fail to clear at full employment** — a possibility classical economics had effectively ruled out. The book's argument that government fiscal policy is both necessary and effective for stabilizing output during demand shortfalls became, after WWII, the consensus framework for policymaking in advanced capitalist economies — the core of what historians call the **postwar Keynesian compromise** that ran roughly from 1945 to the stagflation crisis of the 1970s. For the Right Wing KB, Keynes is the **negative pole** around which much of the modern American conservative economic project organizes. The intellectual project of the Mont Pelerin Society (Hayek, Friedman, Buchanan), the [[Powell Memo]]'s call to corporate political mobilization, the supply-side movement's critique of demand management, and the public-choice critique of "fiscal illusion" all define themselves against Keynesian orthodoxy. When Reagan's 1981 inauguration declared "government is not the solution to our problem; government is the problem," he was repudiating Keynes's premise that government could solve macroeconomic problems at all. ## Biography **John Maynard Keynes** was born **June 5, 1883** in **Cambridge, England** — son of the economist and logician **John Neville Keynes** and social reformer **Florence Ada Brown**. Educated at **Eton** and **King's College, Cambridge**, where he studied mathematics and later economics under Alfred Marshall and Arthur Pigou. He became a Fellow of King's College in **1909** and remained affiliated with Cambridge for the rest of his life. ## Early Career and *The Economic Consequences of the Peace* (1919) Keynes served as a **Treasury official** during World War I, representing the UK at the Paris Peace Conference (1919). He resigned in protest of the [[Versailles Treaty]]'s reparations demands, which he regarded as economically catastrophic and politically destabilizing, and published ***The Economic Consequences of the Peace*** (1919) — a polemical masterpiece that made him internationally famous at age 36. The book predicted (correctly) that punitive reparations would impoverish Germany, destabilize the European economy, and produce political radicalization. Through the 1920s Keynes was Britain's most prominent public intellectual on economic policy — opposing Churchill's return to the gold standard at prewar parity (*The Economic Consequences of Mr. Churchill*, 1925), editing the *Economic Journal* (1911–1944), and producing *A Treatise on Money* (1930), which began the theoretical development that would culminate in the *General Theory*. ## *The General Theory of Employment, Interest and Money* (1936) The most influential economics book of the 20th century. Keynes argued that **aggregate demand** — total spending in the economy — could persistently fall short of the level needed to employ all available labor and capital. Classical economics had assumed that flexible wages and interest rates would automatically clear markets at full employment (Say's Law); Keynes demonstrated multiple mechanisms by which this could fail: the **marginal propensity to consume** (higher-income earners save proportionally more, reducing the demand multiplier), **liquidity preference** (the desire to hold cash rather than invest, especially during uncertainty), the **paradox of thrift** (if everyone saves more during a downturn, aggregate demand falls further, making the downturn worse), and **animal spirits** (the irreducible role of confidence and expectation in investment decisions). The policy conclusion: when private demand is insufficient, **government fiscal policy** — deficit spending on public works, transfer payments, anything that puts money in the hands of people who will spend it — can restore full employment. Monetary policy alone (lowering interest rates) may be insufficient in deep downturns because of the **liquidity trap**: at very low interest rates, further rate cuts fail to stimulate investment because businesses prefer to hold cash. ## Bretton Woods (1944) In July 1944, Keynes led the **British delegation** to the Bretton Woods Conference in New Hampshire, which designed the postwar international monetary order. Keynes proposed the **"Bancor"** — an international clearing currency that would automatically redistribute reserves from surplus to deficit countries, preventing the deflationary bias of the gold standard. The American delegation (led by Harry Dexter White) favored a dollar-centered system. White's plan largely prevailed: the dollar was pegged to gold at $35/oz, other currencies pegged to the dollar, and the IMF and World Bank were established. The resulting Bretton Woods system lasted until Nixon's August 1971 suspension of dollar-gold convertibility. ## Personal Life Keynes was bisexual — his diaries and letters document relationships with men including the painter Duncan Grant and writer Lytton Strachey during his Bloomsbury Group years. He married Russian ballerina **Lydia Lopokova** in **1925**; the marriage was by all accounts devoted and lasting. He was an avid art collector, a successful financial speculator (managing King's College's endowment with extraordinary returns), and an active patron of the arts — serving as the first chairman of the **Arts Council of Great Britain** (1946). Keynes died on **April 21, 1946** at age **62** of a heart attack at his Sussex estate, Tilton. His health had been failing since a serious heart attack in 1937; his wartime and Bretton Woods labors accelerated the decline. ## Postwar Influence and the Conservative Counter-Revolution The **"neoclassical synthesis"** — the integration of Keynesian demand management into mathematical equilibrium models by Paul Samuelson, John Hicks, and others — became the dominant framework in Western economics departments and central banks from the late 1940s through the 1970s. [[Milton Friedman]]'s **monetarist counter-revolution** (beginning in the 1960s) argued that the Keynesian demand-management framework overstated fiscal policy's effectiveness and understated the role of monetary policy and expectations. The **stagflation** of the 1970s (simultaneous high inflation and high unemployment, which simple Keynesian models had difficulty explaining) provided the political opening for the Friedman-Hayek-supply-side coalition to displace Keynesian orthodoxy in policy circles. Nixon's 1971 quip "I am now a Keynesian in economics" (often rendered as "we are all Keynesians now," originally Milton Friedman's phrase in a different context) marked the high-water mark; by 1981, Reagan's inauguration marked the political victory of the anti-Keynesian project. The **New Keynesian** revival (Mankiw, Romer, Stiglitz, Blanchard) from the 1990s onward rebuilt Keynesian insights within the mathematical-optimization framework the profession now required — and the 2008 financial crisis produced a major Keynesian policy revival (TARP, ARRA stimulus, quantitative easing). ## KB Significance Keynes is the **negative pole** of the conservative economic project mapped throughout this KB. The Mont Pelerin Society ([[Friedrich Hayek]], [[Milton Friedman]]), the supply-side movement ([[Jude Wanniski]], [[Art Laffer]]), the public-choice school ([[James Buchanan]]), and the regulatory-pessimism tradition ([[George Stigler]]) all define themselves against Keynesian premises: that government can effectively manage aggregate demand, that fiscal policy can stabilize output, that markets left alone will not automatically produce full employment. The entire intellectual architecture of postwar American conservatism's economic wing is, at bottom, an argument against Keynes. Understanding what Keynes actually argued — and what the conservative counter-tradition actually disputes — is essential context for every economics entry in this KB. ## See Also - [[Keynesian Economics]] - [[The General Theory of Employment, Interest and Money]] - [[Economics]]