AbstractStandard linear macroeconomic models generate business cycles around a unique equilibrium through random productivity or preference shocks. Dynamic nonlinear models with multiple equilibria have the potential for endogenous fluctuations without exogenous shocks. This paper combines both approaches in a nonlinear model with multiple steady states due to a production externality. In the absence of policy changes, the driving forces generating fluctuations are exogenous random productivity shocks: without these shocks the economy would converge to a nonstochastic steady state. However, because there are multiple steady states, large productivity shocks of the right sign can shift the economy between high and low level stochastic steady states, providing an additional endogenous source of fluctuations. In this setting macroeconomic policy exhibits hysteresis (irreversibilities), and policy can be used to eliminate endogenous fluctuations.
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Bibliographic InfoPaper provided by Centre for Economic Performance, LSE in its series CEP Discussion Papers with number dp0135.
Date of creation: Apr 1993
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- Ellison, Martin & Scott, Andrew, 2009.
"Learning and Price Volatility in Duopoly Models of Resource Depletion,"
CEPR Discussion Papers
7378, C.E.P.R. Discussion Papers.
- Martin Ellison & Andrew Scott, 2009. "Learning and Price Volatility in Duopoly Models of Resource Depletion," OxCarre Working Papers 025, Oxford Centre for the Analysis of Resource Rich Economies, University of Oxford.
- Ferrero, Giuseppe, 2007. "Monetary policy, learning and the speed of convergence," Journal of Economic Dynamics and Control, Elsevier, vol. 31(9), pages 3006-3041, September.
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