Why is it that exporter productivity premia (EPP) differ so widely in size? We take this question to the theory and to the data. We derive the sectoral EPP in a standard heterogeneous firms trade model and apply the insights from the model to 13 years of data for all Danish manufacturing firms....

Intra-industry trade has a paramount value in the theory of international trade due to the reason that it establishes the base for exploiting economies of scale and product differentiation, which ultimately ensures the existence of comparative advantage. The current research is an endeavour to...