Within a standard gravity framework I explore the impact of country size and trade liberalisation on extensive and intensive margins of imports across broad categories of goods. This allows testing hypotheses from two distinct strands of the trade literature, i.e., vertical integration versus...

We estimate the elasticity of extra-EU French firm-level exports with respect to applied tariffs, a variable trade cost. We propose a methodology controlling for unobserved firm characteristics driving selection in exports market and for the usual resistance terms. Results confirm a significant...