Implied Spot Rates as Predictors of Currency Returns: A Note
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- Author(s): DAVID R. PETERSON, ALAN L. TUCKER
- Published: Apr 30, 2012
- Pages: 247-258
- DOI: 10.1111/j.1540-6261.1988.tb02600.x
Currency call option transactions data and the Black‐Scholes option pricing model, as modified by Merton for continuous dividends and as adapted to currency options by Biger and Hull and by Garman and Kohlhagen, are used to imply spot foreign exchange rates. The proportional deviation between implied and simultaneously observed spot rates is found to be a direct and statistically significant determinant of subsequent returns on foreign currency holdings after controlling for interest rate differentials. Further, an ex ante trading rule reveals that the additional information contained in implied rates often is sufficient to generate significant economic profits.