A Scapegoat Model of Exchange Rate Fluctuations
AbstractWhile empirical evidence finds only a weak relationship between nominal exchange rates and macroeconomic fundamentals, forex markets participants often attribute exchange rate movements to a macroeconomic variable. The variables that matter, however, appear to change over time and some variable is typically taken as a scapegoat. For example, the current dollar weakness appears to be caused almost exclusively by the large current account deficit, while its previous strength was explained mainly by growth differentials. In this paper, we propose an explanation of this phenomenon in a simple monetary model of the exchange rate with noisy rational expectations, where investors have heterogeneous information on some structural parameter of the economy. In this context, there may be rational confusion about the true source of exchange rate fluctuations, so that if an unobservable variable affects the exchange rate, investors may attribute this movement to some current macroeconomic fundamental. We show that this effect applies only to variables with large imbalances. The model thus implies that the impact of macroeconomic variables on the exchange rate changes over time.
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Bibliographic InfoPaper provided by Université de Lausanne, Faculté des HEC, DEEP in its series Cahiers de Recherches Economiques du Département d'Econométrie et d'Economie politique (DEEP) with number 04.01.
Length: 17 pages
Date of creation: Jan 2004
Date of revision:
Publication status: Published in American Economic Review, vol.94(2), May 2004, pp. 114-118
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Postal: Université de Lausanne, Faculté des HEC, DEEP, Internef, CH-1015 Lausanne
Phone: ++41 21 692.33.64
Fax: ++41 21 692.33.05
Web page: http://www.hec.unil.ch/deep/publications/cahiers/series
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heterogeneous information; model uncertainty;
Other versions of this item:
- Philippe Bacchetta & Eric van Wincoop, 2004. "A Scapegoat Model of Exchange Rate Fluctuations," NBER Working Papers 10245, National Bureau of Economic Research, Inc.
- Philippe Bacchetta & Eric van Wincoop, 2004. "A Scapegoat Model of Exchange Rate Fluctuations," Working Papers 04.01, Swiss National Bank, Study Center Gerzensee.
- Bacchetta, Philippe & van Wincoop, Eric, 2004. "A Scapegoat Model of Exchange Rate Fluctuations," CEPR Discussion Papers 4268, C.E.P.R. Discussion Papers.
- F3 - International Economics - - International Finance
- G1 - Financial Economics - - General Financial Markets
- E0 - Macroeconomics and Monetary Economics - - General
This paper has been announced in the following NEP Reports:
- NEP-ALL-2004-02-23 (All new papers)
- NEP-IFN-2004-02-23 (International Finance)
- NEP-MAC-2004-02-23 (Macroeconomics)
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
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- Philippe Bacchetta & Eric van Wincoop, 2003. "Can Information Heterogeneity Explain the Exchange Rate Determination Puzzle?," Working Papers 03.02, Swiss National Bank, Study Center Gerzensee.
- Eric van Wincoop & Philippe Bacchetta, 2004. "Can Information Heterogeneity Explain the Exchange Rate Determination Puzzle?," Econometric Society 2004 North American Winter Meetings 628, Econometric Society.
- Eric van Wincoop & Philippe Bacchetta, 2003. "Can Information Heterogeneity Explain the Exchange Rate Determination Puzzle?," NBER Working Papers 9498, National Bureau of Economic Research, Inc.
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