How to sustain cooperation is a key challenge for any society. Different social organizations have evolved in the course of history to cope with this challenge by relying on different combinations of external (formal and informal) enforcement institutions and intrinsic motivation. Some societies...

Both empirical evidence and theoretical discussion have long emphasized the impact of `news' on exchange rates. In most exchange rate models, the exchange rate acts as an asset price, and as such responds to news about future returns on assets. But the exchange rate also plays a role in...

The New Open Economy Macroeconomics has allowed economists to tackle classical problems with new tools, while also generating new ideas and questions. In their attempts to make the new models capture empirical regularities, researchers have entertained a variety of assumptions about the...

As the European Community (EC) unifies its financial markets and fixes its exchange rates, the EFTA countries are liberalizing capital movements to the same extent. The EFTA countries thus face a decision on financial markets and exchange rate policy: should they essentially join the European...

Large devaluations are generally associated with large declines in real exchange rates. We develop a model which embodies two complementary forces that account for the large declines in the real exchange rate that occur in the aftermath of large devaluations. The first force is sticky...

Standard macro models cannot explain why real exchange rates are volatile and disconnected from macro aggregates. Recent research argues that models with persistent growth rate shocks and recursive preferences can solve that puzzle. I show that this result is highly sensitive to the structure of...