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Effet peso : présentation théorique et application à la politique monétaire

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  • Nicolas Million

    (CES - Centre d'économie de la Sorbonne - UP1 - Université Paris 1 Panthéon-Sorbonne - CNRS - Centre National de la Recherche Scientifique, Centre de recherche de la Banque de France - Banque de France)

Abstract

This article deals with the theoretical implications implied by the presence of Peso effects in expectations. After presenting the Peso effect as the probability of occurence of an unusual event though important enough to be taken into account in the forecasts, we present a model able to isolate the systematic expectation error. The appearance of this error comes especially from imperfect information concerning the future states as well as the current regime. This uncertainty about the current regime leads the agents to implement a learning process for the model. In the last part of this article, we show how a credible central bank can limit the occurrence of Peso effects.

Suggested Citation

  • Nicolas Million, 2007. "Effet peso : présentation théorique et application à la politique monétaire," Post-Print halshs-00144659, HAL.
    • Handle: RePEc:hal:journl:halshs-00144659
    Note: View the original document on HAL open archive server: https://shs.hal.science/halshs-00144659
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    References listed on IDEAS

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    1. Robert M. Solow, 1956. "A Contribution to the Theory of Economic Growth," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 70(1), pages 65-94.
    2. Fourgeaud, Claude & Gourieroux, Christian & Pradel, Jacqueline, 1986. "Learning Procedures and Convergence to Rationality," Econometrica, Econometric Society, vol. 54(4), pages 845-868, July.
    3. Shiller, Robert J, 1981. "Do Stock Prices Move Too Much to be Justified by Subsequent Changes in Dividends?," American Economic Review, American Economic Association, vol. 71(3), pages 421-436, June.
    4. Thomas J. Sargent, 1969. "Commodity Price Expectations and the Interest Rate," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 83(1), pages 127-140.
    5. Kaminsky, Graciela, 1993. "Is There a Peso Problem? Evidence from the Dollar/Pound Exchange Rate, 1976-1987," American Economic Review, American Economic Association, vol. 83(3), pages 450-472, June.
    6. Lucas, Robert Jr., 1972. "Expectations and the neutrality of money," Journal of Economic Theory, Elsevier, vol. 4(2), pages 103-124, April.
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    Cited by:

    1. Nicolas Million, 2010. "Test simultané de la non-stationnarité et de la non-linéarité : une application au taux d’intérêt réel américain," Économie et Prévision, Programme National Persée, vol. 192(1), pages 83-95.

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    Keywords

    Peso effect; efficient markets; rational expectations; Effet Peso; marchés efficients; anticipation rationnelles;
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