firms always have a higher market share, there is no monotonic relationship between firms' productivity level and their … effect". Therefore, the incentive to add more products weakens as productivity rises. This leads to Lemma 3 in Feenstra and … evidence is in line with the results from the theoretical model. -- multi-product firms ; productivity ; optimal product scope …

consequences for aggregate labor productivity. Using high-quality administrative data from Germany, we document that East German … percent lower aggregate labor productivity in East Germany …

manufacturing firms. First, there is a negative correlation between firms' productivity and their export share to low … found between the share of exports to lowincome countries and either productivity or R&D intensity is never in line with the …

-exporters. However, many firms from the lower end of the productivity distribution are exporters. Germany is a case in point. A recent … study reports that these low-productivity exporters are not marginal exporters defined according to the share of exports in … exports is much higher among exporters from the lower end of the productivity distribution than among highly productive …

due to nominal, but mostly real wage rigidity is substantial. The extent of real rigidity rises with inflation, whereas …, is most likely minimized in an environment with moderate inflation …

Economic theory suggests both positive and negative relationships between intra-firm wage inequality and productivity … relative minor influence of intra-firm wage inequality on firm productivity. If anything, they provide some support for a view … suggesting that some inequality may be beneficial, while too much leads to a detrimental effect on productivity. …