, including data on innovation and trade, we find clear sequencing between imports, exports and innovation. The results suggest … trade focusing solely on exports, whereby firm's learning effects are accounted in the firm of total factor productivity …

of trade (imports, exports) or another type of product (goods, services) are infrequent and are associated with … sorting of firms into trading and non-trading firms in the services sectors as well. -- services sectors , exports ; imports …

-level and services data from four EU countries. Our analysis shows that exports account for much lower shares of overall sales … large share of export value; this is not the case for all countries for the firms which export many services. -- exports … ; imports ; services ; international comparison …