Behrens, Kristian; Corcos, Gregory; Mion, Giordano - 2010
find that changes in firm-country-product exports and imports occurred mostly at the intensive margin: the number of firms … explanatory power on the exports and imports fall respectively, but appear to have affected domestic operations in equal … proportion. More generally, exports-to-turnover and imports-to-intermediates ratios at the firm level did neither systematically …