on the effects of the patent stock on profitability. The data base is a representative sample of German manufacturing … patent stock has a strong and robust effect on profitability. …

leakage of knowledge in an industry will negatively affect profitability. This paper presents the results of an empirical … study on the effects of outgoing and incoming spillovers on firms? profitability. It turns out that the expected asymmetry …

if they are not. We present empirical evidence on effects of perceived threat of entry on profitability. Using … profitability is confirmed. The number and the relative size of competitors also exert considerable effects. We find no …

Theory predicts a positive relationship between market concentration and profitability in most scenarios. In empirical … and profitability. …

Germany, this paper presents the first comprehensive evidence on the relationship between exports and profitability. It … documents that the positive profitability differential of exporters compared to non-exporters is statistically significant …. Instead, we use a newly developed continuous treatment approach and show that exporting improves the profitability almost over …