In his book on “Market Microstructure” Spulber presented some strange results with respect to the impact of the substitutability parameter in an intermediation model with differentiated products and inputs. Intuitively, effects in the product and the input market should be similar: if firms...

In the European Union the commission has the primary right to decide about industrial policy. Note that this includes the possibility to allow actions of member countries as long as these are not in conflict with the interest of the EU. This paper deals with the question whether such an...

The related phenomena of learning curve and network effects are quite common in oligopolistic markets. In this context the present paper discusses the incentives of a technological leader to share its exclusive technology with potential competitors. An alliance may be preferable because partner...

The decision over exports vs. foreign direct investment (FDI) is usually discussed in an extension of the so-called Melitz model where firms with heterogeneous costs compete in a monopolistically competitive industry. The present paper starts from a situation where a potential foreign entrant...

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...

Durch die Anwendung des Vergleichsmarktkonzepts versucht das Bundeskartellamt den Mißbrauch einer marktbeherrschenden Stellung zu verhindern. Die Bindung der Preispolitik an das Verhalten im Vergleichsmarkt führt jedoch bei unvollkommenem Wettbewerb dazu, daß ein Anreiz zu Preiserhöhungen im...

Oil price indexing is a peculiar feature of the natural gas markets in Germany and other European countries. It is closely linked to the existence of local monopolies (at least de facto) and of the so called "take-or-pay" (TOP) contracts. After discussing the relation between these features and...