Exchange rate dynamics under state-contingent stochastic process switching

This paper offers a closed-form solution of a process switching problem, i.e., switching the exchange rate regime from free-floating to a completely fixed one. An example of such regime change is the adoption of the Euro. In contrast to previous studies on the subject, this paper analyzes a specific case when foreign exchange market participants consider both the Euro locking rate and locking date as uncertain. Preceding the locking, the exchange rate is determined by three factors: fundamental, market expectations for the Euro locking rate, and date. The model is used to examine the conditions under which the exchange rate volatility is mitigated by the prospect of locking.