This study constructs a successive Cournot model to investigate the possibility that a separated upstream input supplier can solely sell the intermediate good to a separated downstream manufacturer through an exclusive contract in the presence of a vertically integrated rival. We find that the...

This work is divided into two complementary parts. In the first part, we develop a partial equilibrium model, through which it is possible to analyze the influence of tariff modicity and the illegal occupation of poles on four agents: energy distributors, telecommunications operators, and energy...

Die Deutsche Bahn musste in den vergangenen sechs Jahren eine Gesamtdividende von 2,85 Mrd. Euro bei einem kumulierten Jahresergebnis von knapp 2,35 Mrd. Euro zahlen. Die DB Netz verfolgte in diesem Zeitraum eine monopolistische Preispolitik für die Verkehrsunternehmen auf den nachgelagerten...

Parallel imports have been treated very differently in different countries. In the EU, competition law's very strong (per se) prohibition of restrictions to parallel imports (PI) can be justified by traditional "public interest" concerns related to the EU's objective to promote free trade and...

We analyze a vertically differentiated market for an imperfectly durable good served by a monopolist in an infinite-horizon, discrete-time game. Our goal is to identify the Markov perfect stationary equilibria where the seller can maintain his monopoly power. We establish that the set of...

The paper studies the use of emission taxes and feed-in subsidies for the regulation of a monopoly that can produce the same good with a technology that employs a polluting input and a clean technology. In the first part of the paper, we show that the efficient solution can be implemented...

The static model of two sided markets proposed by Rochet and Tirole analyses optimal pricing of a monopolistic platform at the equilibrium point. Their framework implicitly assumes that for each prices set by the platform, the equilibrium number of users on each side will be unique. However,...

The constitutional conception of market integration within the European Union entails creating a level playing field for competition in the consolidated banking sector. The financial crisis of 2008 brought with it the need to proceed with care as it rolled back the gains of improving competitive...

Amazon ist der größte Onlinemarktplatzbetreiber in Deutschland. Zudem bietet es für Onlinehändler Logistikdienstleistungen an und gehört zu den größten Paketdienstleistern. Die Position als Onlinemarktplatzbetreiber bietet Amazon die Möglichkeit, seine Paket- und Logistikdienstleistungen...