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Exchange Rates, Equity Prices, and Capital Flows

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  • Harald Hau
  • Hélène Rey

Abstract

We develop an equilibrium model in which exchange rates, stock prices, and capital flows are jointly determined under incomplete foreign exchange (forex) risk trading. Incomplete hedging of forex risk, documented for U.S. global mutual funds, induces the following price and capital flow dynamics: Higher returns in the home equity market relative to the foreign equity market are associated with a home currency depreciation. Net equity flows into the foreign market are positively correlated with a foreign currency appreciation. The model predictions are strongly supported at daily, monthly, and quarterly frequencies for 17 OECD countries vis-à-vis the United States. Correlations are strongest after 1990 and for countries with higher equity market capitalization relative to GDP, suggesting that the observed exchange rate dynamics is indeed related to equity market development. Copyright 2006, Oxford University Press.

Suggested Citation

  • Harald Hau & Hélène Rey, 2006. "Exchange Rates, Equity Prices, and Capital Flows," Review of Financial Studies, Society for Financial Studies, vol. 19(1), pages 273-317.
  • Handle: RePEc:oup:rfinst:v:19:y:2006:i:1:p:273-317
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    JEL classification:

    • F3 - International Economics - - International Finance
    • F31 - International Economics - - International Finance - - - Foreign Exchange

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