We analyze the role of commitment in a dynamic principal-agent model of optimal insurance with hidden effort and observable but non-contractible assets. We argue that the optimal contract under full commitment is time-inconsistent. Consequently, we solve for and analyze the optimal insurance...

determination of the …nancing cost of working capital.

To establish that our model is a reasonable description of the data we estimate the model using Bayesian methods and then evaluate its fit along a number of standard dimensions. The Bayesian approach to estimating the model parameters is especially important for providing discipline on the...

We document that international transactions for narrowly defined goods occur infrequently. We study the implications of this lumpiness of international trade for the response of prices and quantities during large devaluations. Using a calibrated inventory management model of international trade...

What inflation rate should central banks target? Following the work of Bils and Klenow (2004), who were the first to document the large amount of heterogeneity in the frequency of price changes across different categories of goods and services in the United States, a growing literature has...

particular, financial intermediaries can invest resources to monitor the returns earned by firms. The inability to monitor perfectly leads to firms earning rents. Undeserving firms are financed, while deserving ones are under funded. A more efficient monitoring technology squeezes the rents...

the contribution of housing booms and busts to business cycles.

The paper examines the link between trade openness and the benefits of exchange rate flexibility under real foreign shocks and nominal rigidities. The benefits of exchange rate flexibility are defined as the welfare difference between outcomes under fixed exchange rates and under an optimized...