This note tests the hypothesis that nominal interest differentials between similar assets denominated in different currencies can be explained entirely by the expected change in the exchange rate over the holding period. This proposition, often called the "Fisher open" hypothesis or the...

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...

This paper builds a multi-country, multi-sector general equilibrium model that explains the decision of heterogeneous firms to serve foreign markets either through exports or local subsidiary sales (FDI). These modes of market access involve different relative costs, some of which are sunk while...

We show that the when one takes into account the global equilibrium ramifications of an unwinding of the US current account deficit, currently estimated at 5.4% of GDP, the potential collapse of the dollar becomes considerably larger--more than 50% larger--than our previous estimates (Obstfeld...

The management of the exchange rate is possible only if the government pursues a monetary-fiscal policy mix which is consistent with its exchange rate targets. In this paper with uncertainty concerning the length of individual life the real consequences of exchange rate management depend on the...

This paper develops a dynamic framework in which macroeconomic liberalization and stabilization measures of the type recently seen in Latin America can be studied. The model is sufficiently general to cover both polar cases of a closed capital account and free private capital mobility, so the...

This paper studies exchange rate behavior in models with moving long-run equilibria incorporating alternative price-adjustment mechanisms.The paper demonstrates that price-adjustment rules proposed by Mussa andby Barro and Grossman yield models that are empirically indistinguishable from each...

The collapse of a fixed exchange rate is typically marked by a sudden balance-of-payments crisis in which"speculators" fleeing from the domestic currency acquire a large portion of the central bank's foreign exchange holdings.Faced with such an attack, the central bank often withdraws...