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...

We decompose the change in the U.S. export share of GDP into an intensive and extensive margin. We then use a model of establishment export dynamics to infer the change in marginal and fixed trade costs from 1976 to 2002. We find the fall in tariffs and transport costs account for approximately...

We develop a model of establishment dynamics consistent with the establishment level heterogeneity in exporting and productivity to analyze the welfare consequences of trade reform. Specifically, we assume that firms face an up-front, sunk cost of entering foreign markets and a smaller...