This paper reviews the new approach to international trade based on firm heterogeneity in differentiated product markets. This approach explains a variety of features exhibited in disaggregated trade data, including the higher productivity of exporters relative to non-exporters, within-industry...

Empirical studies of firms within industries consistently report substantial heterogeneity in measures of performance such as size and productivity. This paper explores the consequences of joint heterogeneity on the supply side (sellers) and the demand side (buyers) in international trade using...

In this paper, we present for the first time a qualitative and quantitative comparison between trade in services and trade in goods at firm level for the same country. We focus first on static features of trade such as participation rates,, firms' characteristics, heterogeneity, concentration...

This paper examines the interdependence between innovation and imports of intermediates, and their joint impact on productivity. We do so by developing a quantitative model with heterogeneous firms and international trade where firms can invest in R&D and source inputs internationally....

This paper focuses on developing countries that export for the first time to the OECD and obtains several important results on export dynamic, linking exports experience and exports survival. Using product level data at the SITC 5 digit level for 114 developing countries on the 1962-2009 period,...

We provide an analysis of the 2008-2009 trade collapse using microdata from a small open economy, Belgium. First, we find that changes in firm-country-product exports and imports occurred mostly at the intensive margin: the number of firms, the average number of destination and origin markets...

How does trade liberalization affect wages? This is the first paper to consider in theory and data how the impact of final and intermediate input tariff cuts on workers’ wages varies with the global engagement of their firm. Our model predicts that a fall in output tariffs lowers wages at...

Advances in communication technology make it possible for workers in India to supply business services to head offices located anywhere. This has the potential to put high-wage workers in direct competition with much lower paid Indian workers. Service trade, however, like goods trade, is subject...

After the large exchange rate depreciations following the 1997 East Asian crisis, export volumes from East Asian countries responded with a notable lag. Two main explanations for this lag have been proposed: that contraction in domestic credit affected supply of exports; and that ‘competitive...

This paper estimates the effects of trade liberalization on plant productivity. In contrast to previous studies, we distinguish between productivity gains arising from lower tariffs on final goods relative to those on intermediate inputs. Lower output tariffs can produce productivity gains by...