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Near-Rational Exuberance

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Author Info

  • James Bullard
  • George Evans

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 "exuberance equilibria" exist in standard macroeconomic environments. These equilibria may display sunspot-like behavior, but without a requirement that the underlying rational expectations equilibrium is indeterminate. We suggest ways in which monetary policymakers might avoid unintended outcomes by adjusting policy to minimize the risk of exuberance equilibria

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Bibliographic Info

Paper provided by Society for Economic Dynamics in its series 2004 Meeting Papers with number 465.

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Date of creation: 2004
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Handle: RePEc:red:sed004:465

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Postal: Society for Economic Dynamics Christian Zimmermann Economic Research Federal Reserve Bank of St. Louis PO Box 442 St. Louis MO 63166-0442 USA
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Keywords: learning; judgement; indeterminacy; monetary policy;

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References

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  1. Lars O. Svensson & Robert J. Tetlow, 2005. "Optimal Policy Projections," NBER Working Papers 11392, National Bureau of Economic Research, Inc.
  2. George W. Evans & Seppo Honkapohja, 2002. "Adaptive Learning and Monetary Policy Design," University of Oregon Economics Department Working Papers 2002-18, University of Oregon Economics Department, revised 04 Mar 2004.
  3. George W. Evans & Seppo Honkapohja, . "Economic Dynamics with Learning: New Stability Results," Computing in Economics and Finance 1997 51, Society for Computational Economics.
  4. Preston, Bruce, 2005. "Learning about Monetary Policy Rules when Long-Horizon Expectations Matter," MPRA Paper 830, University Library of Munich, Germany.
  5. Thomas Sargent & Noah Williams & Tao Zha, 2006. "The Conquest of South American Inflation," NBER Working Papers 12606, National Bureau of Economic Research, Inc.
  6. Lars E.O. Svensson, 2005. "Monetary Policy with Judgment: Forecast Targeting," NBER Working Papers 11167, National Bureau of Economic Research, Inc.
  7. George W. Evans & Seppo Honkapohja, 2003. "Expectations and the Stability Problem for Optimal Monetary Policies," Review of Economic Studies, Oxford University Press, vol. 70(4), pages 807-824.
  8. Lars E.O. Svensson, 2002. "What Is Wrong with Taylor Rules? Using Judgment in Monetary Policy through Targeting Rules," Working Papers 118, Princeton University, Department of Economics, Center for Economic Policy Studies..
  9. 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.
  10. Roger Lagunoff & Stacey L. Schreft, 1999. "Financial fragility with rational and irrational exuberance," Proceedings, Federal Reserve Bank of Cleveland, pages 531-567.
  11. 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(1), pages 1-37, December.
  12. repec:cup:macdyn:v:2:y:1998:i:3:p:287-321 is not listed on IDEAS
  13. 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.
  14. 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.
  15. Hommes, Cars & Sorger, Gerhard, 1998. "Consistent Expectations Equilibria," Macroeconomic Dynamics, Cambridge University Press, vol. 2(03), pages 287-321, September.
  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.
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Citations

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Cited by:
  1. Christian Hellwig & Laura Veldkamp, 2009. "Knowing What Others Know: Coordination Motives in Information Acquisition," Review of Economic Studies, Oxford University Press, vol. 76(1), pages 223-251.
  2. Georges, Christophre, 2008. "Bounded memory, overparameterized forecast rules, and instability," Economics Letters, Elsevier, vol. 98(2), pages 129-135, February.
  3. Fabio Milani, 2011. "Expectation Shocks and Learning as Drivers of the Business Cycle," Economic Journal, Royal Economic Society, vol. 121(552), pages 379-401, 05.
  4. Stijn Van Nieuwerburgh & Laura Veldkamp, 2010. "Information Acquisition and Under-Diversification," Review of Economic Studies, Oxford University Press, vol. 77(2), pages 779-805.
  5. 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.
  6. Vasiliki Skreta & Laura Veldkamp, 2008. "Ratings Shopping and Asset Complexity: A Theory of Ratings Inflation," Working Papers 08-28, New York University, Leonard N. Stern School of Business, Department of Economics.
  7. Evans, George & Honkapohja, Seppo, 2008. "Expectations, Learning and Monetary Policy: An Overview of Recent Research," SIRE Discussion Papers 2008-03, Scottish Institute for Research in Economics (SIRE).
  8. Angelini, Elena & Boissay, Frédéric & Ciccarelli, Matteo, 2006. "The Dutch block of the ESCB multi-country model," Working Paper Series 0646, European Central Bank.

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