We analyze the impact of vertical integration when a monopolistic producer can make a capital commitment before deciding on output.

In a framework with an upstream monopoly and downstream duopoly, we analyze the impact of vertical integration when downstream firms have convex costs.

This paper evaluates the effects of modifying price cap regulation when firms are allowed to use non-linear tariffs. We consider a stylized network industry and analyze price cap regulation combined with rate of return regulation and with a universal service obligation. While both modifications...

Cross-supplies describe the phenomenon that two or more firms in the same industry supply each other with their final products. A prominent example is the cooperation in the European flat glass industry, which was recently criticized by the European Commission. In a simple model we try to...

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...

The current discussion about deregulating the taxi market raises the fundamental question as to whether unregulated competition in this market can lead to efficient results or whether there are sound economic reasons for government intervention. In weighing up different theoretical arguments and...