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Near-rational exuberance

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Author Info
James B. Bullard
George W. Evans
Seppo Honkapohja

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Abstract

We study how the use of judgement or "add-factors" in macroeconomic forecasting may disturb the set of equilibrium outcomes when agents learn using recursive methods. We isolate conditions under which new phenomena, which we call exuberance equilibria, can exist in standard macroeconomic environments. Examples include a simple asset pricing model and the New Keynesian monetary policy framework. Inclusion of judgement in forecasts can lead to self-fulfilling fluctuations, but without the requirement that the underlying rational expectations equilibrium is locally indeterminate. We suggest ways in which policymakers might avoid unintended outcomes by adjusting policy to minimize the risk of exuberance equilibria.

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Paper provided by Federal Reserve Bank of St. Louis in its series Working Papers with number 2004-025.

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Date of creation: 2004
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Handle: RePEc:fip:fedlwp:2004-025

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Keywords: Monetary policy Macroeconomics

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Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
  1. Lagunoff, Roger & Schreft, Stacey L, 1999. "Financial Fragility with Rational And Irrational Exuberance," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 31(3), pages 531-60, August.
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  2. repec:cup:macdyn:v:2:y:1998:i:3:p:287-321 is not listed on IDEAS
  3. Evans, George W. & Honkapohja, Seppo & Honkapohja, Seppo, 1994. "Learning, convergence, and stability with multiple rational expectations equilibria," European Economic Review, Elsevier, vol. 38(5), pages 1071-1098, May. [Downloadable!] (restricted)
  4. Evans, George W & Honkapohja, Seppo, 1998. "Economic Dynamics with Learning: New Stability Results," Review of Economic Studies, Blackwell Publishing, vol. 65(1), pages 23-44, January. [Downloadable!] (restricted)
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  5. Reifschneider, David L. & Stockton, David J. & Wilcox, David W., 1997. "Econometric models and the monetary policy process," Carnegie-Rochester Conference Series on Public Policy, Elsevier, vol. 47, pages 1-37, December. [Downloadable!] (restricted)
  6. George W. Evans & Seppo Honkapohja, 2003. "Adaptive learning and monetary policy design," Proceedings, Federal Reserve Bank of Cleveland, pages 1045-1084.
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  7. Lars E. O. Svensson, 2003. "What Is Wrong with Taylor Rules? Using Judgment in Monetary Policy through Targeting Rules," Journal of Economic Literature, American Economic Association, vol. 41(2), pages 426-477, June.
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  8. Marco Ottaviani & Peter Norman Sørensen, 2004. "The Strategy of Professional Forecasting," FRU Working Papers 2004/05, University of Copenhagen. Department of Economics (formerly Institute of Economics). Finance Research Unit. [Downloadable!]
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  9. George W. Evans & Seppo Honkapohja, 2003. "Expectations and the Stability Problem for Optimal Monetary Policies," Review of Economic Studies, Blackwell Publishing, vol. 70(4), pages 807-824, October. [Downloadable!] (restricted)
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  10. Lars O. Svensson & Robert J. Tetlow, 2005. "Optimal Policy Projections," NBER Working Papers 11392, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
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  11. Sargent, Thomas J., 1991. "Equilibrium with signal extraction from endogenous variables," Journal of Economic Dynamics and Control, Elsevier, vol. 15(2), pages 245-273, April. [Downloadable!] (restricted)
  12. Preston, Bruce, 2005. "Learning about Monetary Policy Rules when Long-Horizon Expectations Matter," MPRA Paper 830, University Library of Munich, Germany. [Downloadable!]
  13. Bruce Preston, 2005. "Learning about Monetary Policy Rules when Long-Horizon Expectations Matter," International Journal of Central Banking, International Journal of Central Banking, vol. 1(2), September. [Downloadable!]
  14. Shiller, Robert J, 1981. "Do Stock Prices Move Too Much to be Justified by Subsequent Changes in Dividends?," American Economic Review, American Economic Association, vol. 71(3), pages 421-36, June. [Downloadable!] (restricted)
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  15. Svensson, Lars E O, 2005. "Monetary Policy with Judgement: Forecast Targeting," CEPR Discussion Papers 5072, C.E.P.R. Discussion Papers. [Downloadable!] (restricted)
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  16. Evans, George W. & Honkapohja, Seppo, 1999. "Learning dynamics," Handbook of Macroeconomics, in: J. B. Taylor & M. Woodford (ed.), Handbook of Macroeconomics, edition 1, volume 1, chapter 7, pages 449-542 Elsevier. [Downloadable!] (restricted)
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Cited by:
(explanations, Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.)

  1. Laura Veldkamp & Christian Hellwig, 2006. "Knowing What Others Know: Coordination Motives in Information Acquisition," Working Papers 06-14, New York University, Leonard N. Stern School of Business, Department of Economics. [Downloadable!]
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  2. Matteo Ciccarelli & Elena Angelini & Frédéric Boissay, 2006. "The Dutch block of the ESCB multi-country model," Working Paper Series 646, European Central Bank. [Downloadable!]
  3. Christian Hellwig, 2005. "Knowing What Others Know: Coordination Motives in Information Acquisition (March 2007, with Laura Veldkamp)," UCLA Economics Online Papers 369, UCLA Department of Economics. [Downloadable!]
  4. Stijn Van Nieuwerburgh & Laura Veldkamp, 2008. "Information Acquisition and Under-Diversification," NBER Working Papers 13904, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
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