Learning, inflation expectations and optimal monetary policy
In this paper we analyse disinflation policy in two environments. In the first, the central bank has perfect knowledge, in the sense that it understands and observes the process by which private sector inflation expectations are generated; in the second, the central bank has to learn the private sector inflation forecasting rule.With imperfect knowledge, results depend on the learning scheme that is employed.Here, the learning scheme we investigate is that of least-squares learning (recursive OLS) using the Kalman filter.A novel feature of a learning-based policy as against the central bank's disinflation policy under perfect knowledge is that the degree of monetary accommodation (the extent to which the central bank accommodates private sector inflation expectations) is no longer constant across the disinflation, but becomes state-dependent.This means that the central bank's behaviour changes during the disinflation as it collects more information. Key words: learning, rational expectations, separation principle, Kalman filter, time-varying parameters, optimal control JEL classification numbers: C53, E43, E52, F33
|Date of creation:||2003|
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- Marcet, Albert & Sargent, Thomas J, 1988. "The Fate of Systems with "Adaptive" Expectations," American Economic Review, American Economic Association, vol. 78(2), pages 168-172, May.
- 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.
- Ellison, Martin & Valla, Natacha, 2000. "Learning, uncertainty and central bank activism in an economy with strategic interactions," Working Paper Series 0028, European Central Bank.
- Martin Ellison & Natacha Valla, 2000. "Learning, Uncertainty And Central Bank Activism In An Economy With Strategic Interactions," Computing in Economics and Finance 2000 183, Society for Computational Economics.
- James B. Bullard, 1991. "Learning, rational expectations and policy: a summary of recent research," Review, Federal Reserve Bank of St. Louis, issue Jan, pages 50-60.
- Wieland, Volker, 2000. "Monetary policy, parameter uncertainty and optimal learning," Journal of Monetary Economics, Elsevier, vol. 46(1), pages 199-228, August.
- Wieland, Volker, 1999. "Monetary policy, parameter uncertainty and optimal learning," ZEI Working Papers B 09-1999, University of Bonn, ZEI - Center for European Integration Studies.
- Volker W. Wieland, 1999. "Monetary policy, parameter uncertainty and optimal learning," Finance and Economics Discussion Series 1999-48, Board of Governors of the Federal Reserve System (U.S.).
- Marcet, Albert & Sargent, Thomas J, 1989. "Convergence of Least-Squares Learning in Environments with Hidden State Variables and Private Information," Journal of Political Economy, University of Chicago Press, vol. 97(6), pages 1306-1322, December.
- Andolfatto, David & Scott Hendry & Kevin Moran, 2002. "Inflation Expectations and Learning about Monetary Policy," Staff Working Papers 02-30, Bank of Canada.
- David Andolfatto & Scott Hendry & Kevin Moran, 2004. "Inflation Expectations and Learning about Monetary Policy," DNB Staff Reports (discontinued) 121, Netherlands Central Bank.
- Mervyn A. King, 1996. "How should central banks reduce inflation? conceptual issues," Proceedings - Economic Policy Symposium - Jackson Hole, Federal Reserve Bank of Kansas City, pages 53-91.
- James B. Bullard & Eric Schaling, 2001. "New economy-new policy rules," Review, Federal Reserve Bank of St. Louis, issue May, pages 57-66.
- James B. Bullard & Eric Schaling, 2000. "New economy - new policy rules?," Working Papers 2000-019, Federal Reserve Bank of St. Louis.
- Bullard, J. & Schaling, E., 2000. "New Economy - New Policy Rules?," Discussion Paper 2000-72, Tilburg University, Center for Economic Research.
- Eric Schaling, James Bullard, 2001. "New economy : new policy rules?," Computing in Economics and Finance 2001 53, Society for Computational Economics.
- Mervyn A. King, 1996. "How should central banks reduce inflation? - Conceptual issues," Economic Review, Federal Reserve Bank of Kansas City, issue Q IV, pages 25-52.
- Hamilton, James D, 1989. "A New Approach to the Economic Analysis of Nonstationary Time Series and the Business Cycle," Econometrica, Econometric Society, vol. 57(2), pages 357-384, March.
- Bertocchi, Graziella & Spagat, Michael, 1993. "Learning, experimentation, and monetary policy," Journal of Monetary Economics, Elsevier, vol. 32(1), pages 169-183, August.
- Bertocchi, Graziella & Spagat, Michael, 1991. "Learning, Experimentation and Monetary Policy," Discussion Papers (IRES - Institut de Recherches Economiques et Sociales) 1991018, Université catholique de Louvain, Institut de Recherches Economiques et Sociales (IRES).
- Kiefer, Nicholas M & Nyarko, Yaw, 1989. "Optimal Control of an Unknown Linear Process with Learning," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 30(3), pages 571-586, August. Full references (including those not matched with items on IDEAS)