This paper investigates whether differences across countries in overall country-specific trade costs affect comparative advantage. It does so by examining whether the commodity composition of countries’ trade is driven by differences in countries’ trade costs, as well as by differences in...

We use comparable micro level panel data for 14 countries and a set of identically specified empirical models to investigate the relationship between exports and productivity. Our overall results are in line with the big picture that is by now familiar from the literature: Exporters are more...