Abstract
Expected rates of depreciation within the target zone for the exchange rates of four Nordic countries during 1979-1989 are estimated. Combining these with expected rates of devaluation estimated by Edin and Vredin (1993) we obtain time-series of the overall expected exchange rate change. We can thus construct time-series of foreign exchange risk premia and expectational errors, following which we decompose the forward exchange rate bias into portions attributable to expectational errors and/or risk premia. The conclusion is that time-varying risk premia appear to be the dominant cause of deviations from uncovered interest parity while the role of expectational errors is less clear.