In this paper, we study the rational for an incumbent to launch a second brand when facing potential entry in a market with quality differentiated products and a fringe producer. Depending on market size, costs for a second brand and a potential entrant's setup cost the incumbent might use a...

This paper analyzes the incentives of a monopolistic matchmaker to generate user-specific information in order to increase match-quality and profits. By merging two-sided-markets with two-sided-matching we derive a micro-foundation of cross-side externalities dependent on the number of potential...

Schnellen Breitbandzugängen für möglichst viele Haushalte wird eine große Bedeutung zugemessen. Die dafür notwendige Technik erfordert allerdings relativ hohe Investitionen. Die EU und mit ihr auch Deutschland sowie die Schweiz verfolgen unterschiedliche Regulierungsregime, wobei die...

Airbnb und Uber schaffen mit ihren Geschäftsmodellen neue Märkte. Werden dadurch Ressourcen besser genutzt, oder werden soziale Standards und gesetzliche Regulierungen umgangen? Nach Meinung von Tim Brühn und Georg Götz, Universität Gießen, bilden sich im Ergebnis Unternehmen mit hohen...

We develop a model in which ex ante identical firms make endogenous entry and technology adoption decisions. We show that this model is capable of matching the stylized facts in which entry is dispersed over time and that, in many industries, it is the newest firms which are the most likely to...

We develop a model in which ex ante identical firms make endogenous entry and technology adoption decisions. We show that this model is capable of matching the stylized facts in which entry and adoption are dispersed over time and that, in many industries, it is the newest firms which are the...

The markets for network-based products and services pose particular problems with regard to competition. The transition from monopolistic to competitive structures and the issues of infrastructure sharing, dominant players and network externalities have all been subject to intensive debates....

Die Wettbewerbssituation auf dem deutschen Bahnmarkt ist vielschichtig: Sowohl die verschiedenen Teilsegmente des Bahnmarktes als auch der intermodale Wettbewerb müssen berücksichtigt werden. Dabei besteht die Gefahr, die Wettbewerbsposition des gesamten Eisenbahnverkehrs gegenüber anderen...

We analyze a drastic price increase in the German auction market for reserve power, which did not appear to be driven by increased costs. Studying the market structure and individual bidding strategies, we find evidence for collusive behavior in an environment with repeated auctions, pivotal...