Chaos in the Dornbusch Model of the Exchange Rate
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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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Paul De Grauwe, Leuven
Hans Dewachter, Leuven
References
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Google Scholar -
Cutler, D., Poterba, J. and Summers, L.: Speculative Dynamics, NBER Working Paper, No. 3242, January 1990.
Google Scholar -
De Grauwe, P., and Vansanten, K.: Deterministic Chaos in the Foreign Exchange Market, CEPR Discussion Paper, No. 370, January 1990.
Google Scholar -
Delong, B., Shleifer, A., Summers, L., Waldmann: Noise Trader Risk in Financial Markets, Journal of Finance, 1990.
Google Scholar -
Devaney, R.: An Introduction to Chaotic Dynamical Systems, Addison Wesley Company, Second Edition, Menlo Park, 1989, pp. 60-68.
Google Scholar -
Dornbusch, R.: Expectations and Exchange rate Dynamics, Journal of Political Economy 84, pp.1161 – 1176, 1976.
Google Scholar -
Frankel, J. and Froot: The Dollar as a Speculative Bubble: A Tale of Chartists and Fundamentalists, NBER Working Paper, No.1854, March 1986.
Google Scholar -
Frankel, J.: Chartists, Fundamentalists and Trading in the Foreign Exchange Market, NBER Reporter, winter 1989/90, 9 – 12.
Google Scholar -
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 -
Goodhart, C.: News and the Foreign Exchange Market, LSE Financial Market Group, Discussion Paper No. 71, January 1990.
Google Scholar -
Levich, R.: Empirical Studies of Exchange Rates: Price Behaviour, Rate Determination and Market Efficiency, Handbook of International Economics, vol II, Jones R. and Kenen P., Elsevier Science Publishers, 1985.
Google Scholar -
Meese, R. and Rogoff, K.: Empirical Exchange Rate Models of the Seventies: Do They Fit Out-of-Sample?, Journal of International Economics, 1983, 3 – 24.
Google Scholar -
Mussa, M.: The Theory of Exchange Rate Determination, in Bilson, John F. O. and Marston, Richard C., eds., Exchange Rate Theory and Practice, Chicago: University of Chicago Press, 1984, pp. 13 – 78.
Google Scholar -
Scheinkman, J. and Lebaron, B.: Nonlinear Dynamics and Stock Returns, Journal of Business vol. 62 no. 3 (1989).
Google Scholar -
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.