The renowned economist born in 1912 known for work in macroeconomic theory and historic economic policies is John Maynard Keynes. Keynes is best known for his revolutionary ideas regarding government intervention in the economy, particularly during times of recession. His seminal work, The General Theory of Employment, Interest, and Money, laid the foundation for modern macroeconomics. Keynesian economics advocates for proactive fiscal policies, influencing economic thought and policy-making around the world.