Several puzzling aspects of the behavior of United States stock prices can be explained by the presence of a specific type of rational bubble that depends exclusively on dividends. We call such bubbles quot;intrinsicquot; bubbles because they derive all of their variability from exogenous...

There is a large and growing empirical literature that tests forthe existence of asset-price bubbles or quot;sunspotquot; equilibria -- equilibria unrelated to market fundamentals. Our view is that even tests for non-stationary asset-price bubbles should not be interpreted as such. In the...

Fifty years ago, Harry G. Johnson published "The Case for Flexible Exchange Rates, 1969," its title echoing Milton Friedman's classic essay of the early 1950s. Though somewhat forgotten today, Johnson's reprise was an important element in the late 1960s debate over the future of the...

The recent balance-of-payments literature shows that-speculative attacks on a pegged exchange rate must sometimes-occur if the path of the rate is riot to offer abnormal profit opportunities. Such attacks are fully rational, as they reflect the market's response to a regime breakdown that is...

This paper is a highly selective review of our knowledge about the scope for sterilized intervention in foreign exchange markets under alternative exchange-rate regimes. Section I demonstrates the potential importance of simultaneous-equations bias in single-equation econometric studies of the...