Abstract This paper analyses the incentives of a vertical integrated Internet service provider (ISP) to block competitors from content markets. Using a simple model we find that the ISP does not block competing content providers as long as the contents are differentiated sufficiently. Exclusion...

Das vorliegende Buch stellt erstmals die Theorie der zweiseitigen Märkte und deren Anwendung auf Medienmärkte intuitiv sowie modelltheoretisch dar. Nach einer Diskussion der ökonomischen Grundlagen werden relevante Modelle zweiseitiger Medienplattformen sowie Anwendungen für die...

We explore whether lawful cooperation in buyer groups facilitates collusion in the product market. Buyer groups purchase inputs more economically. In a repeated game, abandoning the buyer group altogether or excluding single firms constitute credible threats. Hence, in theory, buyer groups...

Abstract The liberalization of the German telecommunications sector is widely regarded as a success story, for which the rigorous regulation of essential facilities together with a liberal licensing policy have been responsible. While many telecommunications markets are now highly competitive,...

Summary This paper analyses price elasticities in the Austrian market for mobile telecommunications services using data on firm specific tariffs in the period between January 1998 and March 2002. As a novelty compared to existing studies dynamic panel data regressions are used to estimate...