Fryges, Helmut; Wagner, Joachim - Zentrum für Europäische Wirtschaftsforschung (ZEW) - 2007
the other hand, previous empirical studies show that exporting does not necessarily improve productivity. One possible … status and the growth of its labour productivity, using the firms? export status as a binary treatment variable and comparing …?s export-sales ratio and its labour productivity growth rate. We find that there is a causal effect of firms? export activities …