In the 1990s, currency crises in Europe, Mexico and Southeast Asia have drawn worldwide attention to speculative attacks on government-controlled exchange rates. To improve our understanding of these events, researchers have undertaken new theoretical and empirical work. In this paper, we...

Observers have often characterized asset markets as being subject to periods of tranquility and periods of turbulence. Until recently, however, researchers were unable to produce closed-form asset pricing formulas in a model environment of time-varying risk. Some work by Abel provided us with...

We develop a modified understand better the 1994 Mexican peso crisis as well as aspects of the European currency crises in 1992-93. We introduce the assumption that the speculative attack is sterilized by the domestic monetary authority, we incorporate a stochastic risk premium, and we allow for...

In this paper we provide additional evidence that process consistency may have materialized as a restrictive constraint on the money generation process. In addition to recomputing the time series of process consistency probabilities using new data from the German case, we also supply our...

This paper reviews recent developments in the theoretical and empirical analysis of balance-of-payments crises. A simple analytical model highlighting the process leading to such crises is first developed. The basic framework is then extended to deal with a variety of issues, such as:...

Typical evaluations of the choice of exchange rate regime employ a criterion function that depends on the real performance of the economy, and they focus on regimes that are expected to last indefinitely. This latter feature is strongly contradicted by the transitory nature of actual...

In the context of a flexible-price monetary exchange rate model and the assumption of uncovered interest parity, we obtain a measure of the fundamental determinant of exchange rates. Daily data for the European Monetary System are used to explore the importance of non-linearities in the...

Evidence of excess volatilities of asset prices compared with those of market fundamentals is often attributed to speculative bubbles. This study examines the sense in which speculative bubbles could in theory lead to excess volatility, hut it demonstrates that some of the variance hounds...

The paper considers the merits of rules and discretion for monetary policy when the structure of the macroeconomic model and the probability distributions of disturbances are not well defined. It is argued that when it is costly to delay policy reactions to seldom-experienced shocks until formal...

In this paper we show, in an example, that the arbitrary behavior which results in an indeterminacy in the time path of a flexible exchange rate and is associated with "badly behaved" speculation has a manifestation under a regime of fixed rates in an indeterminacy in the time path of government...