relevant question here is: if imports make up a substantial part of firms’ sales value, then can the import quality affect …

related to extensive margins of import – firms with a better score have a higher probability to import, they import more goods …

, Italy, Spain, and the United Kingdom) to investigate the links between firm age and the participation of the firms in export …, the share of exports in total sales, the number of countries exported to, and the participation in import. The big picture … revealed is in line with the theoretical considerations. Older firms tend to be more often exporters and importers, they export …

. We further show that selection also applies to number of products traded. Both export and import productivity premiums …

. Our results highlight the importance of import flows from R&D and knowledge intensive economies for productivity and are …