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Chaos in the Dornbusch Model of the Exchange Rate

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De Grauwe, P., Dewachter, H. Chaos in the Dornbusch Model of the Exchange Rate. Credit and Capital Markets – Kredit und Kapital, 25(1), 26-54. https://doi.org/10.3790/ccm.25.1.26
De Grauwe, Paul and Dewachter, Hans "Chaos in the Dornbusch Model of the Exchange Rate" Credit and Capital Markets – Kredit und Kapital 25.1, 1992, 26-54. https://doi.org/10.3790/ccm.25.1.26
De Grauwe, Paul/Dewachter, Hans (1992): Chaos in the Dornbusch Model of the Exchange Rate, in: Credit and Capital Markets – Kredit und Kapital, vol. 25, iss. 1, 26-54, [online] https://doi.org/10.3790/ccm.25.1.26

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Chaos in the Dornbusch Model of the Exchange Rate

De Grauwe, Paul | Dewachter, Hans

Credit and Capital Markets – Kredit und Kapital, Vol. 25 (1992), Iss. 1 : pp. 26–54

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Article Details

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Paul De Grauwe, Leuven

Hans Dewachter, Leuven

References

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  18. De Grauwe, P., and Vansanten, K.: Deterministic Chaos in the Foreign Exchange Market, CEPR Discussion Paper, No. 370, January 1990.  Google Scholar
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  24. Frenkel, J. and Mussa, M.: Asset Markets, Exchange Rates and the Balance of Payments, in Jones, Ronald W. and Kenen, Peter B., eds., Handbook of International Economics Vol. II, Amsterdam, North-Holland, 1985.  Google Scholar
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  30. Shiller, R.: Stock Prices and Social Dynamics, Brooking Papers on Economic Activity, 1984, No. 2, 457 – 98.  Google Scholar

Abstract

Chaos in the Dornbusch Model of the Exchange Rate

In this paper a model of the exchange rate is presented. The model incorporates interactions between different classes of agents. We consider two classes: fundamentalists who use PPP to forecast future exchange rates and chartists, using simple moving average schemes. Moreover we allow the relative strength of these two classes to change over time. Imposing a specific functional form for the relative strength we obtain a closed form solution for the model. The main conclusion of the paper is that these interactions can lead to chaotic paths of the exchange rates. This source of instability is independent of any arrival of news and can explain the recent findings of exchange rate movements that cannot be attributed to new information.