The Economist reviews core ideas in economics. The introductory article points out that economists’ fundamental mission is not to forecast recessions but to explain how the world works. It argues that economists have delivered and it discusses six exemplary areas of economic research: Nash equilibrium; Mundell-Fleming trilemma; Minsky financial-instability; Stopper-Samuelson effect of trade on wages; Keynes fiscal-multiplier; and Akerlof’s and others’ work on information asymmetries....
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