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Inflation persistence and flexible prices

  • Robert Dittmar
  • William T. Gavin
  • Finn E. Kydland

If the central bank follows an interest rate rule, then inflation is likely to be persistence, even when prices are fully flexible. Any shock, whether persistent or not, may lead to inflation persistence. In equilibrium, the dynamics of inflation are determined by the evolution of the spread between the real interest rate and the central bank’s target. Inflation persistence in U.S. data can be characterized by a vector autocorrelation function relating inflation and deviations of output from trend. This paper shows that a flexible-price general equilibrium business cycle model with money and a central bank using an interest rate target can account for such inflation persistence.

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Paper provided by Federal Reserve Bank of St. Louis in its series Working Papers with number 2001-010.

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Date of creation: 2004
Date of revision:
Publication status: Published in International Economic Review, February 2005, 46(1), pp. 245-61
Handle: RePEc:fip:fedlwp:2001-010
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  1. Runkle, David E, 1987. "Vector Autoregressions and Reality," Journal of Business & Economic Statistics, American Statistical Association, vol. 5(4), pages 437-42, October.
  2. 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.
  3. Jeff Fuhrer & George Moore, 1993. "Inflation persistence," Finance and Economics Discussion Series 93-17, Board of Governors of the Federal Reserve System (U.S.).
  4. Clarida, Richard & Galí, Jordi & Gertler, Mark, 1998. "Monetary Policy Rules and Macroeconomic Stability: Evidence and Some Theory," CEPR Discussion Papers 1908, C.E.P.R. Discussion Papers.
  5. Mulligan, Casey B & Sala-I-Martin, Xavier X, 1997. "The Optimum Quantity of Money: Theory and Evidence," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 29(4), pages 687-715, November.
  6. Robert E. Lucas, Jr., 2000. "Inflation and Welfare," Econometrica, Econometric Society, vol. 68(2), pages 247-274, March.
  7. David E. Runkle, 1987. "Vector autoregressions and reality," Staff Report 107, Federal Reserve Bank of Minneapolis.
  8. Gary D. Hansen & Edward C. Prescott, 1992. "Recursive methods for computing equilibria of business cycle models," Discussion Paper / Institute for Empirical Macroeconomics 36, Federal Reserve Bank of Minneapolis.
  9. Sims, Christopher A, 1980. "Macroeconomics and Reality," Econometrica, Econometric Society, vol. 48(1), pages 1-48, January.
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