Keynes's most misread sentence — a methodological manifesto, not a bon mot. The insistence that economic theory addressing only long-run equilibrium is irresponsible to the human beings who must live in the short run.
The most misunderstood sentence in economics appears in Keynes's 1923 Tract on Monetary Reform: 'In the long run we are all dead. Economists set themselves too easy, too useless a task if in tempestuous seasons they can only tell us that when the storm is long past the ocean is flat again.' The sentence is read as flippancy. It is in fact a methodological manifesto — the insistence that economic theory addressing only equilibrium, without addressing the path by which equilibrium is reached, is not merely incomplete but irresponsible. The path is where suffering occurs. The path is where policy decisions are made. The path is where real human beings, who cannot eat long-run equilibria, must live.
In the Long Run We Are All Dead
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The sentence was Keynes's response to the Treasury view that inflationary pressures would resolve themselves as the economy returned to equilibrium. Keynes's point