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 use a simple model of international lending to show that an emerging market borrower who might default can be shut out of international capital markets without warning. A modest haircut on obligations, for example, can shut down lending. Copyright © 2009 The Authors. Journal compilation ©...

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...

Should monetary policy react to stock prices? The answer depends on whether stock prices are good predictors of future economic activity. Using long annual time-series data for the G-7 countries, data going back over 150 years for some countries, we find that stock prices do not systematically...

Speculative attacks on fixed or ‘fixed but adjustable’ exchange rate regimes seem to have become a standard feature of the landscape of foreign exchange markets. The supposed excesses of seemingly untethered financial markets have been documented for some time, but only recently...