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Learning in a misspecified multivariate self-referential linear stochastic model

  • Guse, Eran A.

This paper introduces a general method to study learnability of equilibria resulting from agents using misspecified forecasting models. One can represent the actual and perceived laws of motion (PLM) as seemingly unrelated regressions and then linearly project the actual law of motion into the same class as the PLM. I present an application using the New Keynesian IS-AS model with inertia under several simple Taylor policy rules. It turns out that the results presented in Bullard and Mitra [2002. Learning about monetary policy rules. Journal of Monetary Economics 49, 1105-1129; 2005. Determinacy, Learnability, and Monetary Policy Inertia. Journal of Money, Credit, and Banking, forthcoming] are robust when agents do not include all the state variables in their forecasting models.

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Article provided by Elsevier in its journal Journal of Economic Dynamics and Control.

Volume (Year): 32 (2008)
Issue (Month): 5 (May)
Pages: 1517-1542

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Handle: RePEc:eee:dyncon:v:32:y:2008:i:5:p:1517-1542
Contact details of provider: Web page: http://www.elsevier.com/locate/jedc

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  3. Lawrence J. Christiano & Martin Eichenbaum & Charles Evans, 2001. "Nominal Rigidities and the Dynamic Effects of a Shock to Monetary Policy," NBER Working Papers 8403, National Bureau of Economic Research, Inc.
  4. Bullard, James & Mitra, Kaushik, 2002. "Learning about monetary policy rules," Journal of Monetary Economics, Elsevier, vol. 49(6), pages 1105-1129, September.
  5. Richard Clarida & Jordi Galí & Mark Gertler, 1997. "Monetary policy rules and macroeconomic stability: Evidence and some theory," Economics Working Papers 350, Department of Economics and Business, Universitat Pompeu Fabra, revised May 1999.
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  12. George W. Evans & Bruce McGough, 2003. "Monetary Policy, Indeterminacy and Learning," University of Oregon Economics Department Working Papers 2003-34, University of Oregon Economics Department, revised 01 Apr 2004.
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  18. Seppo Honkapohja & Kaushik Mitra, 2006. "Learning Stability in Economies with Heterogeneous Agents," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 9(2), pages 284-309, April.
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  20. George W. Evans & Bruce McGough, 2004. "Monetary Policy and Stable Indeterminacy with Inertia," University of Oregon Economics Department Working Papers 2004-4, University of Oregon Economics Department, revised 29 Mar 2004.
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