In January 2015, in the face of sustained capital inflows, the Swiss National Bank abandoned the floor for the Swiss Franc against the Euro, a decision which led to the appreciation of the Swiss Franc. The objective of this paper is to present a simple framework that helps to better understand...

This paper proposes a theory of twin banking-currency crises in which both fundamentals and self-fulfilling beliefs play crucial roles. Fundamentals determine whether crises will occur. Self-fulfilling beliefs determine when they occur. The fundamental that causes twin crises' is government...

We argue that recent currency crises reflect clashes between fundamentals and pegged exchange rates, just as did crises in the past. We reject the view that crises reflect self-fulfilling prophecies that are not closely related to measured fundamentals. Doubts about the timing of a market attack...

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...

First generation models of speculative attacks show that apparently random speculative attacks on policy regimes can be fully consistent with rational and well-informed speculative behavior. Unfortunately, models driven by a conflict between exchange rate policy and other macroeconomic...

Existing models of contagious currency crises are summarized and surveyed, and it is argued that more weight should be put on political factors. Towards this end, the concept of political contagion introduced, whereby contagion in speculative attacks across currencies arises solely because of...

This paper documents that carry traders are subject to crash risk: i.e. exchange rate movements between high-interest-rate and low-interest-rate currencies are negatively skewed. We argue that this negative skewness is due to sudden unwinding of carry trades, which tend to occur in periods in...

The plethora of currency crises around the world has fueled many theories on the causes of speculative attacks. The first-generation models focus on fiscal problems. The second-generation models emphasize countercyclical policies and self-fulfilling crises. In the 1990s, models pinpoint to...

This paper is concerned with the fact that the incidence of speculative attacks tends to be temporally correlated; that is, currency crises appear to pass contagiously from one country to another. The paper provides a survey of the theoretical literature, and analyzes the contagious nature of...

This paper argues that the recent Southeast Asian currency crisis was caused by large prospective deficits associated with implicit bailout guarantees to failing banking systems. We articulate this view using a simple dynamic general equilibrium model whose key feature is that a speculative...