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Monetary Policy, Indeterminacy and Learning

  • George W. Evans


    (University of Oregon Economics Department)

  • Bruce McGough

    (Oregon State University)

Forward-looking monetary models with Taylor-type interest rate rules are known to generate indeterminacies, with a potential dependence on extraneous "sunspots," for some structural and policy parameters. We investigate the stability of these solutions under adaptive learning, focusing on "common factor" or "resonant frequency" representations in which the observed sunspot has a suitable time-series structure. We consider specifications incorporating both lagged and expected inflation in the Phillips Curve, and both expected and inertial elements in the policy rule. We find that some policy rules can indeed lead to learnable sunspot solutions and we investigate the conditions under which this phenomenon arises.

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Paper provided by University of Oregon Economics Department in its series University of Oregon Economics Department Working Papers with number 2003-34.

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Length: 48
Date of creation: 11 Oct 2003
Date of revision: 01 Apr 2004
Handle: RePEc:ore:uoecwp:2003-34
Contact details of provider: Postal: 1285 University of Oregon, 435 PLC, Eugene, OR 97403-1285
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  1. Michael Woodford, 1999. "Optimal monetary policy inertia," Proceedings, Federal Reserve Bank of San Francisco.
  2. Evans, George W. & McGough, Bruce, 2005. "Stable sunspot solutions in models with predetermined variables," Journal of Economic Dynamics and Control, Elsevier, vol. 29(4), pages 601-625, April.
  3. George W. Evans & Seppo Honkapohja & Ramon Marimon, 2001. "Stable Sunspot Equilibria in a Cash-in-Advance Economy," CESifo Working Paper Series 611, CESifo Group Munich.
  4. Clarida, R. & Gali, J. & Gertler, M., 1999. "The Science of Monetary Policy: A New Keynesian Perspective," Working Papers 99-13, C.V. Starr Center for Applied Economics, New York University.
  5. Glenn D. Rudebusch, 2001. "Term structure evidence on interest rate smoothing and monetary policy inertia," Working Paper Series 2001-02, Federal Reserve Bank of San Francisco.
  6. George W. Evans & Seppo Honkapohja, 2004. "Adaptive learning and monetary policy design," Macroeconomics 0405008, EconWPA.
  7. George W. Evans & Seppo Honkapohja, 2001. "Existence of Adaptively Stable Sunspot Equilibria Near an Indeterminate Steady State," CESifo Working Paper Series 478, CESifo Group Munich.
  8. Honkapohja, Seppo & Evans, George W., 2000. "Expectations and the stability problem for optimal monetary policies," Discussion Paper Series 1: Economic Studies 2000,10, Deutsche Bundesbank, Research Centre.
  9. Evans, George W. & Honkapohja, Seppo, 2003. "Expectational stability of stationary sunspot equilibria in a forward-looking linear model," Journal of Economic Dynamics and Control, Elsevier, vol. 28(1), pages 171-181, October.
  10. Kaushik Mitra & Seppo Honkapohja, 2004. "Are Non-Fundamental Equilibria Learnable in Models of Monetary Policy?," Royal Holloway, University of London: Discussion Papers in Economics 04/13, Department of Economics, Royal Holloway University of London, revised Jul 2004.
  11. Honkapohja, Seppo & Mitra, Kaushik, 2005. "Performance of monetary policy with internal central bank forecasting," Journal of Economic Dynamics and Control, Elsevier, vol. 29(4), pages 627-658, April.
  12. repec:oup:qjecon:v:115:y:2000:i:1:p:147-180 is not listed on IDEAS
  13. Julio J. Rotemberg & Michael Woodford, 1999. "Interest Rate Rules in an Estimated Sticky Price Model," NBER Chapters, in: Monetary Policy Rules, pages 57-126 National Bureau of Economic Research, Inc.
  14. Farmer Roger E. A. & Guo Jang-Ting, 1994. "Real Business Cycles and the Animal Spirits Hypothesis," Journal of Economic Theory, Elsevier, vol. 63(1), pages 42-72, June.
  15. Howitt, P. & Mcfee, R.P., 1990. "Animal Spirits," UWO Department of Economics Working Papers 9005, University of Western Ontario, Department of Economics.
  16. Woodford, Michael, 1990. "Learning to Believe in Sunspots," Econometrica, Econometric Society, vol. 58(2), pages 277-307, March.
  17. Desgranges, Gabriel & Negroni, Giorgio, 2003. "Expectations Coordination On A Sunspot Equilibrium: An Eductive Approach," Macroeconomic Dynamics, Cambridge University Press, vol. 7(01), pages 7-41, February.
  18. Ben S. Bernanke & Michael Woodford, 1997. "Inflation forecasts and monetary policy," Proceedings, Federal Reserve Bank of Cleveland, pages 653-686.
  19. McCallum, Bennett T., 1999. "Issues in the design of monetary policy rules," Handbook of Macroeconomics, in: J. B. Taylor & M. Woodford (ed.), Handbook of Macroeconomics, edition 1, volume 1, chapter 23, pages 1483-1530 Elsevier.
  20. Howitt, Peter, 1992. "Interest Rate Control and Nonconvergence to Rational Expectations," Journal of Political Economy, University of Chicago Press, vol. 100(4), pages 776-800, August.
  21. James B. Bullard & Kaushik Mitra, 2002. "Learning about monetary policy rules," Working Papers 2000-001, Federal Reserve Bank of St. Louis.
  22. Evans, G.E. & Guesnerie, R., 1999. "Coordination on Saddle Path Solutions: the Eductive Viewpoint. 1- Linear Univariate Models," Papers 1999-15, Laval - Laboratoire Econometrie.
  23. Evans George W. & Honkapohja Seppo, 1994. "On the Local Stability of Sunspot Equilibria under Adaptive Learning Rules," Journal of Economic Theory, Elsevier, vol. 64(1), pages 142-161, October.
  24. Taylor, John B., 1993. "Discretion versus policy rules in practice," Carnegie-Rochester Conference Series on Public Policy, Elsevier, vol. 39(1), pages 195-214, December.
  25. Evans George W & McGough Bruce, 2005. "Indeterminacy and the Stability Puzzle in Non-Convex Economies," The B.E. Journal of Macroeconomics, De Gruyter, vol. 5(1), pages 1-46, September.
  26. Evans, Geroge W & Honkapohja, Seppo & Romer, Paul, 1998. "Growth Cycles," American Economic Review, American Economic Association, vol. 88(3), pages 495-515, June.
  27. repec:oup:qjecon:v:110:y:1995:i:1:p:127-59 is not listed on IDEAS
  28. Garratt, Anthony & Hall, Stephen G., 1997. "E-equilibria and adaptive expectations: Output and inflation in the LBS model," Journal of Economic Dynamics and Control, Elsevier, vol. 21(7), pages 1149-1171, June.
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