In a recent survey, Engel (1996) reported conflicting results about the cointegration relationship between the spot and forward exchange rates. Applying rolling cointegration tests to the mark, yen, and Swiss franc with respect to the U.S. dollar for the post-80 period, we find that the...

This study illustrates that the empirical rejection of the forward rate unbiasedness hypothesis is not sensitive to whether the forward U.S. dollar is quoted at a premium or a discount. It is argued that the reported finding of so-called asymmetry in forward exchange rate bias in earlier work is...