Dieser Beitrag behandelt das Zusammenspiel von normativer und positiver Theorie der Regulierung. Die regulierungsbedürftigen Netzbereiche können mit Hilfe der normativen Theorie der monopolistischen Bottlenecks lokalisiert werden. Der disaggregierte Regulierungsansatz ermöglicht es, die...

We examine how vertical separation affects the lobbying activities for the access charge of essential facilities. First, when investigating a model where the number of new entrants is fixed, we find that vertical separation either increases or decreases the access charge, and that this depends...

Hybrid governance structures between markets and hierarchies in many industries, e.g., in energy and telecommunications, challenge antitrust and regulation policy. The paper focuses on the theoretical and methodological basis provided by the New Institutional Economics (NIE) for analyzing the...