We construct a rational expectations model in which aggregate growth alternates between a low growth and a high growth state. When all agents expect growth to be slow, the returns on investment are low, and little investment takes place. This slows growth and confirms the prediction that the returns on investment will be low. But if agents expect fast growth, investment is high, returns are high, and growth is rapid. This expectational indeterminacy is induced by complementarity between different types of capital goods. In a growth cycle there are stochastic shifts between high and low growth states and agents take full account of these transitions. The rules that agents need to form rational expectations in this equilibrium are simple. The equilibrium with growth cycles is stable under the dynamics implied by a correspondingly simple learning rule
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Length: Date of creation: Jul 1996 Date of revision: Handle: RePEc:nbr:nberwo:5659
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Evans, Geroge W & Honkapohja, Seppo & Romer, Paul, 1998.
"Growth Cycles,"
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American Economic Association, vol. 88(3), pages 495-515, June.
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Find related papers by JEL classification: E3 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles
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Howitt, Peter & McAfee, R Preston, 1992.
"Animal Spirits,"
American Economic Review,
American Economic Association, vol. 82(3), pages 493-507, June.
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Laurence Ball & N. Gregory Mankiw, 1995.
"A Sticky-Price Manifesto,"
NBER Working Papers
4677, National Bureau of Economic Research, Inc.
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