1883–1946 · economics, macroeconomics, fiscal policy
John Maynard Keynes (1883–1946) was a British economist whose revolutionary ideas fundamentally reshaped modern macroeconomics and economic policy. He is best known for advocating for active government intervention through fiscal and monetary policy to mitigate the adverse effects of economic recessions, depressions, and booms. His seminal work, *The General Theory of Employment, Interest and Money* (1936), challenged classical economic orthodoxy and laid the foundation for Keynesian economics.