The mathematical formulation of a strategic Eurasian natural gas market model is presented. The model represents horizontal oligopolistic relationships among producers, bilateral market power between producer (Russia) and transit (Ukraine) countries, detailed transport constraints, and operation...

This paper analyses whether prices and trade-flows in the international market for metallurgical coals were subject to non-competitive conduct in the period 2008 to 2010. To do so, I develop mathematical programming models – a Stackelberg model, two varieties of a Cournot model, and a perfect...

In this paper we advocate using the latent class model (LCM) approach to control for technological differences in traditional efficiency analysis of regulated electricity networks. Our proposal relies on the fact that latent class models are designed to cluster firms by uncovering differences in...

We propose a spatial competition model to study banks’ strategic responses to the asymmetric Spanish geographic deregulation process. We find that once the geographic deregulation process finishes, inter-regional mergers between savings banks are optimal whenever the economies of scale...

Die Erhöhung der Benzinpreise findet in der Öffentlichkeit viel Beachtung. Das Bundeskartellamt geht in Deutschland von einem marktbeherrschenden Oligopol der Mineralölgesellschaften aus. Wettbewerbsrechtliche Maßnahmen greifen jedoch nicht, weil der Markt sehr volatil ist und direkte...

We investigate the implications of Network Neutrality regulation for Internet fragmentation. We model a two-sided market, where Content Providers (CPs) and consumers interact through Internet Service Providers (ISPs) and CPs sell consumers' attention to advertisers. Under Network Neutrality, CPs...

Unter dem Stichwort „Netzneutralität“ wird in Öffentlichkeit und Politik zur Zeit intensiv diskutiert, welchen Anforderungen die Datenübertragung in Telekommunikationsnetzen künftig genügen muss. Dabei stellt sich die Frage, ob Daten priorisiert werden dürfen und wenn ja, in welchem...