We investigate the potential presence of time variation in the coefficients of the ''Fama regression'' for Uncovered InterestRate Parity. We implement coefficient constancy tests, rolling regression techniques, and stochastic coefficient modelsbased on state space modelling. Among six major US...

The British foreign exchange reserves decreased by 40 percent during the period August 1996-December 1999 although the Pound Sterling is considered a floating exchange rate since it left the EMS in 1992. Since changes in the level of foreign exchange reserves are usually taken as indicators for...