Discussion Paper Details

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Title: Exchange Rates, Equity Prices and Capital Flows

Author(s): Harald Hau and Hélène Rey

Publication Date: February 2003

Keyword(s): capital flows, equity flows, forex hedging and market incompleteness

Programme Area(s): Financial Economics and International Macroeconomics

Abstract: We develop an equilibrium model in which exchange rates, stock prices and capital flows are jointly determined under incomplete forex risk trading. Incomplete hedging of forex risk, documented for US global mutual funds, has three important implications: 1) exchange rates are almost as volatile as equity prices when the forex liquidity supply is not infinitely price elastic; 2) higher returns in the home equity market relative to the foreign equity market are associated with a home currency depreciation; 3) 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 US Moreover, correlations are strongest after 1990 and for countries with higher market capitalization relative to GDP, suggesting that the observed exchange rate dynamics is indeed related to equity market development.

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Bibliographic Reference

Hau, H and Rey, H. 2003. 'Exchange Rates, Equity Prices and Capital Flows'. London, Centre for Economic Policy Research.