| Abstract: | The evidence in Fama and Bliss (1987) that forward interestrates forecast future spot interest rates for horizons beyonda year repeats in the out-of-sample 1986–2004 period.But the inference that this forecast power is due to mean reversionof the spot rate toward a constant expected value no longerseems valid. Instead, the predictability of the spot rate capturedby forward rates seems to be due to mean reversion toward atime-varying expected value that is subject to a sequence ofapparently permanent shocks that are on balance positive tomid-1981 and on balance negative thereafter. |
