Interest rate expectations and the exchange rate

This paper presents a model of exchange rate reactions to interest rate changes and explains the following complex interactions. An expected interest rate increase induces a current depreciation. If that increase is true in the next period, then the exchange rate appreciates more than the previous depreciation. If the increase is sustained, it leads to a final, though small, depreciation. The model explicitly takes into account capital gains and losses. As far as expectations are concerned, two types of agents are considered (chartist and fundamentalist), and expectations are formed in two different ways (rational and bandwagon effect). Simulations and some empirical evidence for the U.S. dollar support the implications of the model. (JEL E44, F31).