Individual contributions by infringing firms to the compensation of cartel victims must reflect their “relative responsibility for the harm caused” according to EU legislation. Several studies have argued that the theoretically best way to operationalize this norm is to apply the Shapley...

One of the most important economic strategic sectors in any economy is the electricity market. Its main feature is its oligopolistic character favoured by the returns to scale which act as an entry barrier. As a result, the energy generators can use their power market in order to increase their...

Im Datenkapitalismus sind neue Kommunikationsunternehmen entstanden, deren Angebot als „umsonst“ erscheint. Ihr Geschäftsmodell basiert darauf, dass die Nutzer (Kunden) ihre Daten preisgeben und dafür entweder ein nachgefragtes Gut (Kommunikation, Medien, Waren und Dienstleistungen) ohne...

We develop a dynamic entry model of multi-store oligopoly with heterogeneous markets, and estimate it using data on hamburger chains in Canada (1970–2005). Because more lucrative markets attract more entry, firms appear to favor the pres- ence of more rivals. Thus unobserved heterogeneity...

This paper formalizes an empirically implementable framework for the definition of local antitrust markets in retail markets. This framework rests on a demand model that captures the trade-off between distance and pecuniary cost across alternative shopping destinations within local markets. The...

Preisgarantien im Einzelhandel scheinen auf den ersten Blick Ergebnis eines intensiven Wettbewerbs zu sein. Theoretische Analysen und empirische Studien zeigen jedoch, dass dies in der Regel nicht der Fall ist. Preisgarantien und hier vor allem Garantien, bei denen mehr als die Differenz zu...

Standard analysis of mergers in oligopolies along the lines of the popular Farrell-Shapiro Framework (FSF) relies, regarding its policy conclusions, on the assumption that rational agents will only propose privately profitable mergers. If this assumption were held, a positive external effect of...