diminish such support. Our national-level models show for the first time that increasing imports are associated with decreasing …

but expensive air cargo and slow but cheap ocean cargo. This choice depends on the price elasticity of demand and the …. We use US imports data that provide rich variation in the premium paid for air shipping and in time lags for ocean …

We study unanticipated tariffs on imports of intermediate goods in a setting with firm-to-firm supply relationships …

elasticity of the demand for the output and the impact of demand and cost shifters. The use of this framework helps, in the first … way to assess the welfare effects of firms' innovative actions by estimating their impact on both cost and demand. We show …

sensitive to the treatment of time trends. Estimates of aggregate imports are more problematic. In many cases, Chinese aggregate … imports actually rise in response to a RMB depreciation and decline with Chinese GDP. This is true even after accounting for … the fact a substantial share of imports are subsequently incorporated into Chinese exports. We find that some of these …

rising relative wages and quantities of high-skilled labor. We develop a theory where demand shifts toward ever more skill …

This paper quantifies the roles of increases in the demand for skill-intensive output, the efficient scale of service … progress. The rising scale of services, the rising demand for skill-intensive output, and skill-biased technical change all …

disaggregate trade data, e.g. Gabon's imports of Gambian groundnuts, we structurally estimate the impact that new imports have had …