The paper provides a general-equilibrium model where incomplete international financial markets lead to insufficient industrial specialization and low international trade. As international portfolio diversification is limited and productivity is uncertain, investors wish to maintain a...

The paper investigates whether deviations from the law of one price can attributed to real factors, such as transportation and distribution costs. Even if trade is costly, the prices of a good at di.erent locations will be linked as long as the good is traded. Instead of the usual iceberg...

Exporters are few-less than one-fifth among U.S. manufacturing firms-and are larger than non-exporting firms-about 4-5 times more total sales per firm. These facts are often cited as support for models with economies of scale and firm heterogeneity as in Melitz (2003). The authors find that the...

The paper provides an explanation to the policy of implicit exchange rate bands. Especially when introducing a new exchange rate band or modifying the old one, central banks often intervene intra-marginally, targeting a narrower band than that announced. The theoretical literature provides...