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Long Swings in the Dollar: Are They in the Data and Do Markets Know It?

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  • Engel, Charles
  • Hamilton, James D

Abstract

The value of the dollar appears to move in one direction for long periods of time. The authors develop a new statistical model of exchange rate dynamics as a sequence of stochastic, segmented time trends. They reject the null hypothesis that exchange rates follow a random walk in favor of their model of long swings. The authors' model also generates better forecasts than a random walk. The specification is a natural framework for assessing the importance of the "peso problem" for the dollar. The authors nonetheless reject uncovered interest parity. Copyright 1990 by American Economic Association.

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  • Engel, Charles & Hamilton, James D, 1990. "Long Swings in the Dollar: Are They in the Data and Do Markets Know It?," American Economic Review, American Economic Association, vol. 80(4), pages 689-713, September.
  • Handle: RePEc:aea:aecrev:v:80:y:1990:i:4:p:689-713
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