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A Model Of Near-Rational Exuberance

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  • Bullard, James
  • Evans, George W.
  • Honkapohja, Seppo

Abstract

We study how the use of judgment or "add-factors" in 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 a standard self-referential environment. Local indeterminacy is not a requirement for existence. We construct a simple asset pricing example and find that exuberance equilibria, when they exist, can be extremely volatile relative to fundamental equilibria.

(This abstract was borrowed from another version of this item.)

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Bibliographic Info

Article provided by Cambridge University Press in its journal Macroeconomic Dynamics.

Volume (Year): 14 (2010)
Issue (Month): 02 (April)
Pages: 166-188

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Handle: RePEc:cup:macdyn:v:14:y:2010:i:02:p:166-188_09

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References

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  1. 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.
  2. Lars O. Svensson & Robert J. Tetlow, 2005. "Optimal Policy Projections," NBER Working Papers 11392, National Bureau of Economic Research, Inc.
  3. Thomas Sargent & Noah Williams & Tao Zha, 2006. "The Conquest of South American Inflation," NBER Working Papers 12606, National Bureau of Economic Research, Inc.
  4. Laurence Ball, 2000. "Near-Rationality and Inflation in Two Monetary Regimes," Economics Working Paper Archive 435, The Johns Hopkins University,Department of Economics.
  5. Marco Ottaviani & Peter Norman Sørensen, 2004. "The Strategy of Professional Forecasting," FRU Working Papers 2004/05, University of Copenhagen. Department of Economics. Finance Research Unit.
  6. Hommes, Cars & Sorger, Gerhard, 1998. "Consistent Expectations Equilibria," Macroeconomic Dynamics, Cambridge University Press, vol. 2(03), pages 287-321, September.
  7. 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.
  8. Benhabib, Jess & Farmer, Roger E.A., 1999. "Indeterminacy and sunspots in macroeconomics," Handbook of Macroeconomics, in: J. B. Taylor & M. Woodford (ed.), Handbook of Macroeconomics, edition 1, volume 1, chapter 6, pages 387-448 Elsevier.
  9. Ricardo J. Caballero, 1992. "Near-Rationality, Heterogeneity and Aggregate Consumption," NBER Working Papers 4035, National Bureau of Economic Research, Inc.
  10. Svensson, Lars O, 2005. "Monetary Policy with Judgment: Forecast Targeting," MPRA Paper 819, University Library of Munich, Germany.
  11. Robert J. Shiller, 1980. "Do Stock Prices Move Too Much to be Justified by Subsequent Changes in Dividends?," NBER Working Papers 0456, National Bureau of Economic Research, Inc.
  12. 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.
  13. Akerlof, George A & Yellen, Janet L, 1985. "A Near-rational Model of the Business Cycle, with Wage and Price Intertia," The Quarterly Journal of Economics, MIT Press, vol. 100(5), pages 823-38, Supp..
  14. repec:att:wimass:9621 is not listed on IDEAS
  15. 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.
  16. 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.
  17. George W. Evans & Seppo Honkapohja, . "Economic Dynamics with Learning: New Stability Results," Computing in Economics and Finance 1997 51, Society for Computational Economics.
  18. Brock, William A. & Hommes, Cars H., 1998. "Heterogeneous beliefs and routes to chaos in a simple asset pricing model," Journal of Economic Dynamics and Control, Elsevier, vol. 22(8-9), pages 1235-1274, August.
  19. James B. Bullard & George W. Evans & Seppo Honkapohja, 2007. "Monetary policy, judgment and near-rational exuberance," Working Papers 2007-008, Federal Reserve Bank of St. Louis.
  20. Branch, William A. & McGough, Bruce, 2005. "Consistent expectations and misspecification in stochastic non-linear economies," Journal of Economic Dynamics and Control, Elsevier, vol. 29(4), pages 659-676, April.
  21. 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.
  22. Albert Marcet & Thomas J. Sargent, 1992. "Speed of convergence of recursive least squares learning with ARMA perceptions," Economics Working Papers 15, Department of Economics and Business, Universitat Pompeu Fabra.
  23. repec:cup:macdyn:v:2:y:1998:i:3:p:287-321 is not listed on IDEAS
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Citations

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Cited by:
  1. Cars Hommes & Mei Zhu, 2013. "Behavioral Learning Equilibria," Tinbergen Institute Discussion Papers 13-014/II, Tinbergen Institute.
  2. Georges, Christophre, 2008. "Staggered updating in an artificial financial market," Journal of Economic Dynamics and Control, Elsevier, vol. 32(9), pages 2809-2825, September.
  3. Roger E.A. Farmer & Carine Nourry & Alain Venditti, 2013. "The Inefficient Markets Hypothesis: Why Financial Markets Do Not Work Well in the Real World," Working Papers halshs-00796672, HAL.
  4. Gaballo, G., 2012. "Good Luck or Good Policy? An Expectational Theory of Macro-Volatility Switches," Working papers 402, Banque de France.
  5. Volha Audzei, 2012. "Efficiency of Central Bank Policy During the Crisis : Role of Expectations in Reinforcing Hoarding Behavior," CERGE-EI Working Papers wp477, The Center for Economic Research and Graduate Education - Economic Institute, Prague.
  6. Christian Hellwig & Laura Veldkamp, 2006. "Knowing what others Know: Coordination motives in information acquisition," 2006 Meeting Papers 361, Society for Economic Dynamics.
  7. Cars Hommes & Mei Zhu, 2013. "Behavioral Learning Equilibria," Tinbergen Institute Discussion Papers 13-014/II, Tinbergen Institute.
  8. Murray, James, 2011. "Learning and judgment shocks in U.S. business cycles," MPRA Paper 29257, University Library of Munich, Germany.

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