We extend a target zone model to allow for occasional changes in the policy regime which change the stochastic process driving fundamentals. A scenario we have in mind is that macroeconomic policy alternates between relatively tight and loose regimes. A key implication of our analysis is that...

In credible target zone regimes, exchange rates should, according to Krugman's 1991 theory, spend a disproportionate amount of time near the edges of the fluctuation band. The major application of this theory has been to the European Monetary System (EMS), with several authors reporting that...

In this paper I examine issues of optimal stabilization in two types of world economy, a competitive one where all countries are small, and one where there is a Stackelberg leader. The focus is on the 1985 target zones proposal of Williamson, according to which there should be a periodic fixing...

The recent theory of exchange rate dynamics within a target zone holds that exchange rates under a currency band are less responsive to fundamental shocks than exchange rates under a free float, provided that the intervention rules of the Central Bank(s) are common knowledge. These results are...

The paper presents an overview of several studies about the credibility of the European Monetary System (EMS). These studies compare different credibility indicators in terms of their ability to detect exchange rate crises in a target zone. Marginal credibility seems to be the best measure for...

The term structure of interest rate differentials is derived in a model of a small open economy with a target-zone exchange rate regime. The target zone is modelled as a regulated Brownian motion. The interest rate differentials are computed as the solution to a parabolic partial differential...

Global capital flows into emerging markets, including those in Asia, continue to be volatile. These capital flows generate both benefits and costs. The latter are associated with episodes of currency and banking crises like the 1997 Asian financial crisis and the 2008 global financial and...