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Learning, Endogenous Indexation, and Disinflation in the New-Keynesian Model

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Volker Wieland

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Abstract

This paper introduces adaptive learning and endogenous indexation in the New-Keynesian Phillips curve and studies disinflation under inflation targeting policies. The analysis is motivated by the disinflation performance of many inflation-targeting countries, in particular the gradual Chilean disinflation with temporary annual targets. At the start of the disinflation episode, price-setting firms expect inflation to be highly persistent and opt for backwardlooking indexation. As the central bank acts to bring inflation under control, price-setting firms revise their estimates of the degree of persistence. Such adaptive learning lowers the cost of disinflation. This reduction can be exploited by a gradual approach to disinflation. Firms that choose the rate for indexation also re-assess the likelihood that announced inflation targets determine steady-state inflation and adjust indexation of contracts accordingly. A strategy of announcing and pursuing short-term targets for inflation is found to influence the likelihood that firms switch from backward-looking indexation to the central bank’s targets. As firms abandon backward-looking indexation the costs of disinflation decline further. We show that an inflation targeting strategy that employs temporary targets can benefit from lower disinflation costs due to the reduction in backward-looking indexation.

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Paper provided by Central Bank of Chile in its series Working Papers Central Bank of Chile with number 493.

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Date of creation: Oct 2008
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Handle: RePEc:chb:bcchwp:493

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  1. Timothy Cogley & Riccardo Colacito & Thomas J. Sargent, 2007. "Benefits from U.S. Monetary Policy Experimentation in the Days of Samuelson and Solow and Lucas," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 39(s1), pages 67-99, 02. [Downloadable!] (restricted)
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  2. Arminio Fraga & Ilan Goldfajn & Andre Minella, 2003. "Inflation Targeting in Emerging Market Economies," NBER Working Papers 10019, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
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  3. Lars E.O. Svensson & Noah Williams, 2007. "Bayesian and Adaptive Optimal Policy under Model Uncertainty," CFS Working Paper Series 2007/11, Center for Financial Studies. [Downloadable!]
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  4. Vitor Gaspar & Frank Smets & David Vestin, 2006. "Adaptive Learning, Persistence, and Optimal Monetary Policy," Journal of the European Economic Association, MIT Press, vol. 4(2-3), pages 376-385, 04-05. [Downloadable!] (restricted)
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  5. Thomas Sargent & Noah Williams & Tao Zha, 2006. "The Conquest of South American Inflation," NBER Working Papers 12606, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
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  6. Orphanides, Athanasios & Williams, John C, 2006. "Inflation Targeting under Imperfect Knowledge," CEPR Discussion Papers 5664, C.E.P.R. Discussion Papers. [Downloadable!] (restricted)
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  7. Vittorio Corbo & Klaus Schmidt-Hebbel, 2001. "Inflation Targeting in Latin America," Working Papers Central Bank of Chile 105, Central Bank of Chile. [Downloadable!]
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  8. Klaus Schmidt-Hebbel & Alejandro Werner, 2002. "Inflation Targeting in Brazil, Chile, and Mexico: Performance, Credibility, and the Exchange Rate," Working Papers Central Bank of Chile 171, Central Bank of Chile. [Downloadable!]
  9. Orphanides, Athanasios & Wieland, Volker, 2000. "Inflation zone targeting," European Economic Review, Elsevier, vol. 44(7), pages 1351-1387, June. [Downloadable!] (restricted)
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  10. Wieland, Volker, 2000. "Learning by doing and the value of optimal experimentation," Journal of Economic Dynamics and Control, Elsevier, vol. 24(4), pages 501-534, April. [Downloadable!] (restricted)
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  11. Branch, William A. & Evans, George W., 2006. "A simple recursive forecasting model," Economics Letters, Elsevier, vol. 91(2), pages 158-166, May. [Downloadable!] (restricted)
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  12. Oscar Landerretche & Vittorio Corbo & Klaus Schmidt-Hebbel, 2001. "Does Inflation Targeting Make a Difference," Working Papers Central Bank of Chile 106, Central Bank of Chile. [Downloadable!]
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  13. Wieland, Volker, 2000. "Monetary policy, parameter uncertainty and optimal learning," Journal of Monetary Economics, Elsevier, vol. 46(1), pages 199-228, August. [Downloadable!] (restricted)
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  14. Schmidt-Hebbel, Klaus & Tapia, Matias, 2002. "Inflation targeting in Chile," The North American Journal of Economics and Finance, Elsevier, vol. 13(2), pages 125-146, August. [Downloadable!] (restricted)
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  16. Beck, Gunter W. & Wieland, Volker, 2002. "Learning and control in a changing economic environment," Journal of Economic Dynamics and Control, Elsevier, vol. 26(9-10), pages 1359-1377, August. [Downloadable!] (restricted)
  17. Athanasios Orphanides & John C. Williams, 2006. "Monetary Policy with Imperfect Knowledge," Journal of the European Economic Association, MIT Press, vol. 4(2-3), pages 366-375, 04-05. [Downloadable!] (restricted)
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  18. Volker Wieland, 2006. "Monetary Policy and Uncertainty about the Natural Unemployment Rate: Brainard-Style Conservatism versus Experimental Activism," Advances in Macroeconomics, Berkeley Electronic Press, vol. 6(1), pages 1288-1288. [Downloadable!] (restricted)
  19. Milani, Fabio, 2007. "Expectations, learning and macroeconomic persistence," Journal of Monetary Economics, Elsevier, vol. 54(7), pages 2065-2082, October. [Downloadable!] (restricted)
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  20. Calvo, Guillermo A., 1983. "Staggered prices in a utility-maximizing framework," Journal of Monetary Economics, Elsevier, vol. 12(3), pages 383-398, September. [Downloadable!] (restricted)
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  24. Ellison, Martin, 2006. "The learning cost of interest rate reversals," Journal of Monetary Economics, Elsevier, vol. 53(8), pages 1895-1907, November. [Downloadable!] (restricted)
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