about firm heterogeneity in trade. First, the bulk of exports and imports are captured by a few multi-product firms that … transact with a large number of countries. Second, the average importer imports more products than the average exporter exports … and joint ventures trade more and import more products from more source countries, but export fewer products to fewer …

census of China's exports. Intermediaries account for around 20% of China's exports in 2005. This implies that many firms … their mode of export - either directly or indirectly through an intermediary. The model predicts that intermediaries will be …

U.S. trade statistics to provide a broad overview of how the margins of trade contribute to variation in U.S. imports … and exports across trading partners, types of trade (i.e., arm's-length versus related-party) and both short and long time …

the fact a substantial share of imports are subsequently incorporated into Chinese exports. We find that some of these … exchange rate - but the relationships are not always precisely or robustly estimated. Chinese exports are generally well … sensitive to the treatment of time trends. Estimates of aggregate imports are more problematic. In many cases, Chinese aggregate …

The competitive shock to the U.S. manufacturing sector spurred by rising China import competition could either catalyze … analysis of the effect of surging import competition on U.S. innovative activities. Applying a novel internet-based matching … adjustment and for all measures of valuation suggest that the primary response of firms to greater import competition is to scale …

productivity and country-specific variables. In contrast to canonical export models where firm profits are additively separable …

This paper describes the updating of the NBER trade dataset, which now provides U.S. import and export values to the … years 1989-2001. Earlier CD-ROMs distributed by the NBER described data on U.S. imports and exports from 1972-1994, and …