Are initial competitive advantages self-reinforcing, so that markets exhibit an endogenous tendency to be dominated by only a few firms? Although this question is of great economic importance, no systematic empirical study has yet addressed it. Therefore, we examine experimentally whether firms...

The introduction of new digital production and distribution technologies may alter the firms' strategy sets, as they are not able to commit credibly to quantity strategies anymore. Mixed oligopoly markets may emerge where some companies compete in prices, while others adjust their quantities....

Electronic coordination may drastically reduce transport costs, especially for digital or digitalizable products where local markets may actually shrink to a point in space. In the present paper we use a model with differentiated products to analyze the impact of declining transport costs on...

Do firms have proper incentives to invest in electronic coordination? We discuss this question in an oligopoly model with a local firm and a distant competitor that may reduce transport costs by investing in electronic coordination. In a two-stage game with investment in the first stage and...

What is the appropriate degree of centralization in the context of industrial policy? The basic advantage of centralization results from internalization of external effects. While most of the literature stresses the superior information of regional authorities as a countervailing force, the...

Die formal verwandten Phänomene Lernkurven- und Netzwerkeffekte sind in Oligopolmärkten häufig anzutreffen. Im vorliegenden Papier wird untersucht, ob in solchen Märkten ein Anreiz zur Kooperation zwischen einem Technologieführer und potentiellen Konkurrenten besteht. Die Vorteile einer...

We study the incentives of oligoplistic firms to share private information on demand parameters. Differently from previous studies, we consider bilateral sharing agreements, by which firms commit at the ex-ante stage to truthfully share information. We show that if signals are i.i.d., then...

We study the problem of information sharing in oligopoly, when sharing decisions are taken before the realization of private signals. Using the general model developed by Raith (1996), we show that if firms are allowed to make bilateral exclusive sharing agreements, then some degree of...

We introduce the concept of cooperative substitutes and complements, and use it to throw light on the conditions for a research joint venture to choose equal levels of R&D by all member firms. We show that the second-order conditions for a symmetric optimum take a particularly simple form,...

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...