Multiple Equilibria in Heterogeneous Expectations Models
AbstractThis paper fills an important gap in the literature on determinacy and existence of sunspot equilibria in stochastic linear self-referential models. The results in this paper demonstrate that heterogeneity in expectations may alter a model's regions of determinacy. We show how to associate with a heterogeneous expectations model (HE-model) a rational expectations model (ARE-model), the solutions to which are the equilibria of the HE-model. This association recasts the analysis of determinacy in the HE-model to analysis of determinacy in the ARE-model. We proceed to study a forward looking model and find that the stability properties of rational expectations models may not be robust. In particular, we present new results showing that in some models even a very small fraction of non-rational agents may preclude rational agents from coordinating on sunspots. Also, we present parameterizations of the model in which sunspots exist in the heterogeneous model when they do not exist in the rational expectations version of the model.
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Bibliographic InfoArticle provided by De Gruyter in its journal The B.E. Journal of Macroeconomics.
Volume (Year): 4 (2004)
Issue (Month): 1 (December)
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- William R. Parke & George A. Waters, 2011. "On the Evolutionary Stability of Rational Expectations," Working Paper Series 20111002, Illinois State University, Department of Economics.
- Lengnick, Matthias & Wohltmann, Hans-Werner, 2010.
"Agent-based financial markets and New Keynesian macroeconomics: A synthesis,"
Economics Working Papers
2010,10, Christian-Albrechts-University of Kiel, Department of Economics.
- Matthias Lengnick & Hans-Werner Wohltmann, 2013. "Agent-based financial markets and New Keynesian macroeconomics: a synthesis," Journal of Economic Interaction and Coordination, Springer, vol. 8(1), pages 1-32, April.
- Lengnick, Matthias & Wohltmann, Hans-Werner, 2011. "Agent-based financial markets and New Keynesian macroeconomics: A synthesis," Economics Working Papers 2011,09, Christian-Albrechts-University of Kiel, Department of Economics.
- Michele Berardi, 2006.
"Monetary policy with heterogeneous and misspecified expectations,"
Centre for Growth and Business Cycle Research Discussion Paper Series
81, Economics, The Univeristy of Manchester.
- Michele Berardi, 2009. "Monetary Policy with Heterogeneous and Misspecified Expectations," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 41(1), pages 79-100, 02.
- William Branch & Bruce McGough, 2011. "Business cycle amplification with heterogeneous expectations," Economic Theory, Springer, vol. 47(2), pages 395-421, June.
- Guse, Eran A., 2010.
"Heterogeneous expectations, adaptive learning, and evolutionary dynamics,"
Journal of Economic Behavior & Organization,
Elsevier, vol. 74(1-2), pages 42-57, May.
- Eran A. Guse, 2008. "Heterogeneous Expectations, Adaptive Learning, and Evolutionary Dynamics," Working Papers 09-01, Department of Economics, West Virginia University.
- Eran Guse, 2004.
"Learning with Heterogeneous Expectations in an Evolutionary World,"
Computing in Economics and Finance 2004
99, Society for Computational Economics.
- Guse, E., 2005. "Learning with Heterogeneous Expectations in an Evolutionary World," Cambridge Working Papers in Economics 0547, Faculty of Economics, University of Cambridge.
- Berardi, Michele, 2011.
"Fundamentalists vs. chartists: Learning and predictor choice dynamics,"
Journal of Economic Dynamics and Control,
Elsevier, vol. 35(5), pages 776-792, May.
- Michele Berardi, 2008. "Fundamentalists vs. chartists: learning and predictor choice dynamics," Centre for Growth and Business Cycle Research Discussion Paper Series 104, Economics, The Univeristy of Manchester.
- Anton Nakov, 2012.
"Learning from experience in the stock market,"
Finance and Economics Discussion Series
2012-41, Board of Governors of the Federal Reserve System (U.S.).
- Berardi, Michele, 2007. "Heterogeneity and misspecifications in learning," Journal of Economic Dynamics and Control, Elsevier, vol. 31(10), pages 3203-3227, October.
- Branch, William A. & McGough, Bruce, 2010. "Dynamic predictor selection in a new Keynesian model with heterogeneous expectations," Journal of Economic Dynamics and Control, Elsevier, vol. 34(8), pages 1492-1508, August.
- Liam Graham, 2011. "Learning, information and heterogeneity," CDMA Working Paper Series 201113, Centre for Dynamic Macroeconomic Analysis.
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