Keynesianism continues to lose its dominance in macroeconomics. New Keynesians attempt to rescue it from irrelevance with models recognizing (1) the noninstantaneous adjustment of product prices, (2) imperfect knowledge, and (3) nonclearing labor markets. But these are conditions recognized in...

Keynes's multiplier story invites acceptance by building on the fact that people typically consume only a fraction of their income and that such purchases are incomes for sellers. By misrepresenting the classical definition of saving and the meaning of Say's Law, Keynes laid the grounds for...