This paper applies the Switching ARCH (SWARCH) model of Hamilton and Susmel (1994) to investigate the dynamics of deviations from Uncovered Interest Parity (UIP) for Malaysia for the sample period 1978-2002. In particular, the deviations (or the risk premium) are modelled as a time series...

Similar but alternative specifications of tests of forward rate unbiasedness provide conflicting evidence on the rejection of the hypothesis. These conflicting results are reconciled by demonstrating that although the root cause is simultaneity bias, the severity of this bias and the resulting...