This paper assumes that groups of consumers in network markets can coordinate their choices when it is in their best interest to do so, and when coordination does not require communication. It is shown that multiple asymmetric networks can coexist in equilibrium if consumers have heterogeneous...

In some markets vertically integrated firms sell directly to final customers but also to independent downstream firms with whom they then compete on the downstream market. It is often argued that resellers intensify competition and benefit consumers, in particular when wholesale prices are...

We study contracting between a consumer and an expert. The expert can invest in diagnosis to obtain a noisy signal about whether a low-cost service is sufficient or whether a high-cost treatment is required to solve the consumer's problem. This involves moral hazard because diagnosis effort and...

Der Dioxin-Skandal bei Futtermitteln, aber auch die fehlerhafte und interessengeleitete Beratung beim Kauf von Finanzdienstleistungen hat die Verbraucherpolitik in Misskredit gebracht. In der öffentlichen Debatte werden zunehmend rigidere Vorschriften für die Anbieter gefordert, aber auch mehr...

In the context of emission trading it seems to be taken as given that people's preferences can be ignored with respect to the whole process of fixing emission targets and allocating emission permits to polluters. With this paper we want to reopen the debate on how citizens can be involved in...

Durch verschiedene Änderungen der Krankenhausfinanzierung sind Krankenhäuser seit 1993 einem verstärkten wirtschaftlichen Druck ausgesetzt. In einem vom Bundesministerium für Bildung und Forschung geförderten Projekt wurde untersucht, ob und in welchen Bereichen die Einführung prospektiver...

The relationship between physician and patient has been discussed intensively in the literature. Nevertheless, they neglect the fact that the production of health not only depends on the medical services supplied by the physician but is also influenced by the patient's compliance. We present a...

Online Consumer-to-Consumer Communication Networks are characterized by informational and social benefits as well as time and effort costs for participants. Therefore, this dissertation takes an economic perspective on the network formation process as a determinant of value for consumers and...