H. Levy et Kc. Lim, FORWARD EXCHANGE BIAS, HEDGING AND THE GAINS FROM INTERNATIONAL DIVERSIFICATION OF INVESTMENT PORTFOLIOS, Journal of international money and finance, 13(2), 1994, pp. 159-170
The gains to the US investor from international diversification of inv
estment portfolios are examined for portfolio strategies that hedge an
d strategies that do not hedge exchange rate risk via the interbank fo
rward market. Using the Sharpe Performance Index and stochastic domina
nce as performance measures, almost all the unhedged strategies outper
formed the hedged strategies for 1985-88; the opposite held for 1981-8
4. The results are explained by the biasedness of forward rates in pre
dicting future spot rates.