This paper conducts a quantitative examination of the hypothesis that uncertain duration of currency pegs causes the sharp real appreciations and business cycles that affect chronically countries using fixed exchange rates as an instrument to stop high inflation. Numerical solutions of...

In his seminal 1960 study on the dynamics of alternative exchange rate regimes, Robert Mundell proposed a theory of balance-of-payments crises in which speculators base their actions on the observed holdings of central bank foreign reserves. We examine the quantitative implications of this view...

This paper compares the welfare costs and initial dynamics of three alternative inflation stabilization policies using the staggered price model with imperfect credibility and currency substitution developed by Calvo and Vegh (1990). In addition to the policies analyzed by Calvo and Vegh...

The Tequila Effect hypothesis states that the economic crisis that affected several South American countries in 1995 was caused by an exogenous capital flight triggered by the loss of confidence of foreign investors after the collapse of the Mexican peso in December 1994. I analyze the recent...

A defining stylized fact associated with exchange-rate-based (ERB) stabilization programs is that their initial phase is characterized by several years of expansion in private consumption and a gradual appreciation of the real exchange rate. In this paper, I argue that standard optimizing models...

This paper presents a dynamic general equilibrium model of a small, open, monetary economy in order to analyze the short-run effects of credible stabilization plans that fix the nominal exchange rate in a regime of free convertibility. In this model inflation acts as a tax on domestic market...

This paper analyzes the implications of a balanced budget fiscal policy rule for the determinacy of the price level in a cash-in-advance economy under three alternative monetary policy regimes. It shows that, in such stylized models with flexible prices and a period-by-period balanced budget...

This paper introduces a real exchange rate rule of the type analyzed by Dornbusch (1982) in an optimizing, two-sector, monetary model of a small open economy. By this rule the government increases the devaluation rate when the real exchange rate is below its long-run level and reduces it when...

A simple model of currency substitution is developed in which the private cost of performing transactions in the foreign currency depends upon the aggregate degree of dollarization. This feature generates multiple steady states and hysteresis in an otherwise standard cash-in-advance model of a...

In this paper, we characterize conditions under which interest rate feedback rules whereby the nominal interest rate is set as an increasing function of the inflation rate generate multiple equilibria. We show that these conditions depend not only on the fiscal regime (as emphasized in the...