This paper studies optimal fiscal policy in an economy where heterogeneous agents with uncertain lifetimes coexist. We show that some plausible social welfare functions lead to time-inconsistent optimal plans, and we suggest restrictions on social preferences that avoid the problem. The...

How will countries handle idiosyncratic national macroeconomic shocks under the European single currency? The ways in which European countries now react to internally asymmetric shocks provide a better forecast than do the regional response pattern of the United States. In this paper we compare...

This paper surveys the performance of international capital markets and the literature on measuring international capital mobility. Three main functions of a globally integrated and efficient world capital market provide focal points for the analysis. First, asset-price arbitrage ensures that...

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...

When changes in the economic policy regime occur stochastically, asset prices will reflect the possibility of such shifts. In this paper we apply techniques of regulated Brownian motion to obtain closed-form analytic price solutions when policy reaction functions are subject to prospective...

There is a large and growing empirical literature that tests forthe existence of asset-price bubbles or "sunspot" 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 present paper...

This paper studies the merits of policy rules with escape clauses, analyzing as an example fixed exchange-rate systems that allow member countries the freedom to realign in periods of stress. Motivating this example is the debate within the European Monetary System over how quickly to move from...

This essay written for The New Palgrave dictionary of Ecnomics provides a selective and interpretive account of the development of thought on international financial questions. Attention is focused on the process of international adjustment and on the proper definition of external balance. Since...

This paper investigates the spending and current-account effects of permanent terms-of-trade shifts in a model where households maximize utility over an infinite planning period. In the framework we adopt, an economy specialized in production must experience a fall in aggregate spending and a...