A unilateral trade reform generates two opposite effects: market access expansion and strengthening of competitive pressures in the liberalized market. Using detailed trade and firm-level data from France, the authors investigate how French firms' product scope and export sales changed after...

Models of heterogeneous firms with selection into export market participation generically exhibit aggregate trade elasticities that vary across country-pairs. Only when heterogeneity is assumed Pareto-distributed do all elasticities collapse into a unique elasticity, estimable with a gravity...

This paper studies the impact of input-trade liberalization on firms' decision to upgrade foreign technology embodied in imported capital goods. Our empirical analysis is motivated by a simple theoretical framework of endogenous technology adoption, heterogeneous firms and imported inputs. The...

This paper examines which product supply-side characteristics affect the resilience of traded products to the COVID-19 pandemic. Relying on monthly product-level exports by all countries to the United States, Japan, and 27 European Union countries from January 2018 to December 2020, the paper...

We examine the supply-side characteristics - unskilled labor, imported input intensity, dependence on inputs from China, production complexity - that determine different potential vulnerabilities of traded products to the COVID-19 pandemic. Relying on monthly exports at the product level by all...