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Imperfect knowledge, adaptive learning and the bias against activist monetary policies

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  • Alberto Locarno

    ()
    (Banca d'Italia)

Abstract

When the economy is subject to recurrent structural shifts, the monetary authority cannot credibly commit to a systematic approach to policy, since consistency between promises and actions is not easily verifiable; moreover, since agents have incomplete knowledge of the surrounding environment, they form expectations that may deviate substantially from the full-information case. The present paper studies the implications for the effectiveness of discretionary monetary policymaking of departing from the benchmark of rational expectations and assuming instead that agents learn adaptively. It focuses on two issues, namely whether imperfect knowledge generates a bias against stabilisation policies and whether the optimal monetary strategy takes the form of an inflation cap. Rules featuring an inflation cap are not only justified on theoretical grounds, but are also appealing because they seem appropriate to deal with imperfect knowledge and learning: by setting explicit bounds on inflation, they seem better suited to restrain expectations from drifting significantly away from target, thus removing one of the main sources of policy ineffectiveness. The main findings of the paper are the following. First, when agents do not possess complete knowledge on the structure of the economy and rely on an adaptive learning technology, a bias toward conservativeness arises. Second, a policy that involves a cap on inflation is helpful in reducing output and inflation variability, but it is not uniformly superior to a strategy aimed at minimising a quadratic loss function. Third, the bias against stabilisation policies and towards conservativeness does not depend on whether agents have finite or infinite memory.

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Paper provided by Bank of Italy, Economic Research and International Relations Area in its series Temi di discussione (Economic working papers) with number 590.

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Date of creation: May 2006
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Handle: RePEc:bdi:wptemi:td_590_06

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Keywords: Adaptive learning; optimal degree of monetary policy discretion; bias against activist policies;

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  1. Gaspar,Vítor & Issing,Otmar & Tristani,Oreste & Vestin,David, 2006. "Imperfect Knowledge and Monetary Policy," Cambridge Books, Cambridge University Press, number 9780521854863, April.
  2. Orphanides, Athanasios & Wilcox, David W, 2002. "The Opportunistic Approach to Disinflation," International Finance, Wiley Blackwell, vol. 5(1), pages 47-71, Spring.
  3. Wieland, Volker, 2003. "Monetary Policy and Uncertainty about the Natural Unemployment Rate," CFS Working Paper Series 2003/05, Center for Financial Studies (CFS).
  4. Svensson, Lars E. O. & Woodford, Michael, 2003. "Indicator variables for optimal policy," Journal of Monetary Economics, Elsevier, vol. 50(3), pages 691-720, April.
  5. Ellison, Martin & Valla, Natacha, 2001. "Learning, uncertainty and central bank activism in an economy with strategic interactions," Journal of Monetary Economics, Elsevier, vol. 48(1), pages 153-171, August.
  6. Orphanides, Athanasios & Wieland, Volker, 1999. "Inflation zone targeting," Working Paper Series 0008, European Central Bank.
  7. Honkapohja, S. & Evans, G.W., 2000. "Expectations and the Stability Problem for Optimal Monetary Policies," University of Helsinki, Department of Economics 481, Department of Economics.
  8. Driffill, John & Rotondi, Zeno, 2004. "Monetary Policy and Lexicographic Preference Ordering," CEPR Discussion Papers 4247, C.E.P.R. Discussion Papers.
  9. Athanasios Orphanides & John C. Williams, 2003. "Imperfect Knowledge, Inflation Expectations, and Monetary Policy," NBER Working Papers 9884, National Bureau of Economic Research, Inc.
  10. Wiliam Branch & John Carlson & George W. Evans & Bruce McGough, 2004. "Monetary Policy, Endogenous Inattention, and the Volatility Trade-off," University of Oregon Economics Department Working Papers 2004-19, University of Oregon Economics Department, revised 15 May 2007.
  11. Bertocchi, Graziella & Spagat, Michael, 1993. "Learning, experimentation, and monetary policy," Journal of Monetary Economics, Elsevier, vol. 32(1), pages 169-183, August.
  12. Frederic S. Mishkin & Niklas J. Westelius, 2006. "Inflation Band Targeting and Optimal Inflation Contracts," NBER Working Papers 12384, National Bureau of Economic Research, Inc.
  13. Giuseppe Ferrero, 2004. "Monetary Policy and the Transition to Rational Expectations," Temi di discussione (Economic working papers) 499, Bank of Italy, Economic Research and International Relations Area.
  14. 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.
  15. al-Nowaihi, Ali & Stracca, Livio, 2002. "Non-standard central bank loss functions, skewed risks, and certainty equivalence," Working Paper Series 0129, European Central Bank.
  16. Buiter, Willem H, 2006. "How Robust is the New Conventional Wisdom? The Surprising Fragility of the Theoretical Foundations of Inflation Targeting and Central Bank Independence," CEPR Discussion Papers 5772, C.E.P.R. Discussion Papers.
  17. Charles Goodhart & Margaret Bray, 2002. "You Might as Well be Hung for a Sheep as a Lamb: The Loss Function of an Agent," FMG Discussion Papers dp418, Financial Markets Group.
  18. Marcet, Albert & Sargent, Thomas J., 1989. "Convergence of least squares learning mechanisms in self-referential linear stochastic models," Journal of Economic Theory, Elsevier, vol. 48(2), pages 337-368, August.
  19. Balvers, Ronald J & Cosimano, Thomas F, 1994. "Inflation Variability and Gradualist Monetary Policy," Review of Economic Studies, Wiley Blackwell, vol. 61(4), pages 721-38, October.
  20. Bray, Margaret, 1982. "Learning, estimation, and the stability of rational expectations," Journal of Economic Theory, Elsevier, vol. 26(2), pages 318-339, April.
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