@techreport{NBERw2835, title = "Exchange Rate Dynamics Under Stochastic Regime Shifts: A Unified Approach", author = "Kenneth A. Froot and Maurice Obstfeld", institution = "National Bureau of Economic Research", type = "Working Paper", series = "Working Paper Series", number = "2835", year = "1992", month = "June", URL = "http://www.nber.org/papers/w2835", abstract = {Techniques of regulated Brownian motion are used to analyze the behavior of the exchange rate when official policy reaction functions are subject to future stochastic changes. We examine exchange-rate dynamics in alternative cases where the authorities promise (i) to confine a floating rate within a predetermined range and (ii) to peg the currency once it reaches a predetermined future level. Similarities between these and several related examples of regime switching are stressed}, }