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We examine the gains from globalization in the presence of firm heterogeneity and potential resource misallocation. We show theoretically that without distortions, bilateral and export liberalizations increase aggregate welfare and productivity, while import liberalization has ambiguous effects. Resource misallocation can either amplify, dampen or reverse the gains from trade. Using model-consistent measures and unique new data on 14 European countries and 20 industries in 1998-2011, we empirically establish that exogenous shocks to export demand and import competition both generate large aggregate productivity gains. Guided by theory, we provide evidence consistent with these effects operating through reallocations across firms in the presence of distortions: (i) Both export and import expansion increase average firm productivity, but the former also shifts activity towards more productive firms, while the latter acts in reverse. (ii) Both export and import exposure raise the productivity threshold for survival, but this cut-off is not a sufficient statistic for aggregate productivity. (iii) Efficient institutions, factor and product markets amplify the gains from import competition but dampen those from export access.

This paper provides an estimation of the reaction of firm-level exports consecutive to real exchange rate movements - the exchange rate elasticity of exports. Following recent theoretical works emphasizing the role played by firm heterogeneity, we test in particular how the exchange rate elasticity may be a..ected by firm-level productivity, and how the heterogeneous reaction of different firms may contribute to shape the aggregate reaction of countries' exports. The analysis relies on a unique cross-country micro-based dataset of exporters available for 11 European countries (2001- 2011), which details in particular information about firms' productivity and export performance. Our results show that while the average exchange rate elasticity across firms is quite weak, it is also highly heterogeneous. The least productive ..rms within each country and sector tend to react more to real exchange rate movements than the most productive firms. This weak reaction of highly productive and large exporters tends to reduce the macroeconomic exchange rate elasticity in all countries. Cross-country di..erences in the shape of the productivity distribution among exporters have a strong influence on the macroeconomic exchange rate elasticity: countries populated with a higher density of low productive firms tend to respond more to exchange rate movements in terms of aggregate exports than countries populated with highly productive exporters.

This paper studies the impact of input-trade liberalization on firms' decision to upgrade foreign technology embodied in imported capital goods. The empirical analysis is motivated by a simple theoretical framework of endogenous technology adoption, heterogeneous firms and imported inputs. The model predicts a positive effect of input tariff reductions on firms' technology choice to source capital goods from abroad. This effect is heterogeneous across firms depending on their initial productivity level. Relying on India's trade liberalization episode in the early 1990s, this paper demonstrates that the probability of importing capital goods is higher for firms producing in industries that have experienced greater cuts on tariffs on intermediate goods. Only those firms in the middle range of the initial productivity distribution have benefited from input-trade liberalization to upgrade their technology.

This paper provides a new cross-country evaluation of competitiveness, focusing on the linkages between productivity and export performance among European economies. We use the information compiled in the Trade module of CompNet to establish new stylized facts regarding the joint distributions of the firm-level exports performance and productivity in a panel of 15 countries, 23 manufacturing sectors during the 2000’s. We confirm that exporters are more productive than non-exporters. However, this productivity premium is rising with the export experience of firms, with permanent exporters being much more productive than starters. At the intensive margin, we show that both the level and the growth of firm-level exports rise with firm productivity, and that the bulk of aggregate exports in each country are made by a small number of highly productive firms. Finally, we show that during the crisis, the growth of exports by high productive firms sustained the current account adjustment of European “stressed” economies. This last result confirms that the shape of the productivity distribution within each country can have important consequences from the point of view of the dynamics of aggregate trade patterns.