Macro - o curto e o longo prazo

Keynes sobre o curto e o longo prazo: "The long run is a misleading guide to current affairs. 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." John Maynard Keynes: A Tract on Monetary Reform. London: Macmillan. The Collected Writings of John Maynard Keynes, vol 4, 1972, p. 80