This article derives a European Herfindahl-Hirschman concentration index from 15 micro-aggregated country datasets. In … the last decade, European concentration rose due to a reallocation of economic activity towards large and concentrated … markups stayed constant. Using country-industry variation, we show that changes in concentration are positively associated …

This article derives a European Herfindahl-Hirschman concentration index from 15 micro-aggregated country datasets. In … the last decade, European concentration rose due to a reallocation of economic activity towards large and concentrated … markups stayed constant. Using country-industry variation, we show that changes in concentration are positively associated …

unintended consequence of increasing market concentration among technology vendors that provide support services to websites. We … concentration of the vendor market by 17%. Increased concentration predominantly arises among vendors that use personal data such as …. This suggests that increases in concentration are driven by website vendor choices rather than changes in user behavior …

shocks that increase concentration will also lead to an increase in wage dispersion between firms. Empirically, we use …-tically significant correlation between concentration and between-firm wage inequality, driven by increases in market shares and wages in …