The empirical data presented here have been derived from a company survey which has been conducted in eight service sectors across the EU. From these eight sectors four sectors have been chosen for the present analysis. The criterion for selection was comparability with respect to market...

Theory predicts a positive relationship between market concentration and profitability in most scenarios. In empirical work, however, this relation is frequently not found or only a weak connection is observed. We compare the performance of concentration and market share variables, which are...