This paper estimates the elasticity of substitution of U.S. imports using detailed trade data over the 1990-2003 period. The authors use a two-stage least squares framework in order to identify the elasticity parameter of interest. The authors use the elasticity estimates to assess the extent to...

"Silva investigates the role played by domestic importers and foreign exporters in improving preferential access to the domestic market. To this end, the framework he uses extends the protection for sale analysis to explicitly model the role of domestic importers and foreign exporters in...

Kee, Olarreaga, and Silva assess the foreign lobbying forces behind the tariff preferences that the United States grants to Latin American and Caribbean countries. The authors extend the basic framework developed by Grossman and Helpman (1994) to explain the relationship between foreign lobbying...