Platform markets are characterized by the existence of indirect network effects that connect two or more market sides through a platform that internalizes these feedback effects. Conventional instruments of market definitions which consider price levels cannot easily applied in case of two-sided...

Regeln zur Netzneutralität werden sowohl in Europa als auch in den USA intensiv diskutiert. Die Arbeit untersucht die ökonomischen Aspekte möglicher Priorisierungsregimen. Basierend auf Erkenntnissen der Theorie der zweiseitigen Märkte und der Industrieökonomik werden allgemeine Aussagen zu...

This paper analyses the interdependency between the market for music recordings and concert tickets, assuming that there are positive indirect network effects both from the record market to ticket sales for live performances and vice versa. Using a model with two interrelated Salop circles we...

This paper analyses the interdependency between the market for music recordings and concert tickets, assuming that there are positive indirect network effects both from the record market to ticket sales for live performances and vice versa. Using a model with two interrelated Salop circles we...

This paper explores the effects that collusion can have in newspaper markets where firms compete for advertising as well as for readership. We compare three modes of competition: i) competition in the advertising and the reader market, ii) semi-collusion over advertising (with competition in the...

Die vorliegende Arbeit analysiert die Stellungen von Flughäfen im Luftverkehrssystem anhand komplementärer industrieökonomischer Theorien. Motivation waren neue Herausforderungen bei der Gestaltung des staatlichen Ordnungsrahmens, die mit der Liberalisierung und Privatisierung der...