This paper develops a methodology to assess transport infrastructure investments and their effects on a Nash equilibria taking into account competition between multiple privatized transport operator types. The operators, including high-speed rail, hub and spoke legacy airlines and low cost...

Congestion has become a problem for many airports throughout the world. Two different policy options to control congestion are analyzed in this paper: slot constraints and congestion pricing. In particular, our model takes into account that the airline industry is characterized by significant...

This paper considers networks with two or three complementary airports. In each case, two airports independently choose between slot and pricing policies, where slot policies involve grandfather rules. We show that equilibrium policies involve slots when airport profits do not matter and pricing...

This paper develops a methodology to assess transport infrastructure investments and their effects on a Nash equilibria taking into account competition between multiple privatized transport operator types. The operators, including high-speed rail, hub and spoke legacy airlines and low cost...

This paper analyses how different types of access regulation to next generation networks affect investments and consumer welfare. The model consists of an investment stage with uncertain returns and subsequent quantity competition. The access price is a function of investment costs and the...

Die Einführung neuer Endkundentarife für den festen Internetzugang durch die Deutsche Telekom hat die Netzneutralitätsdebatte erneut befeuert. Dabei geht es um die Frage, ob Endkundenanbieter bei der Übertragung von Daten im Internet bestimmte Dienste oder Inhalte gegen ein vom Sender oder...

In some industries, monopoly is natural. One provider can serve the relevant demand cheaper than two or more firms. If the monopoly is not contestable, i.e. not controlled by a credible threat of entry, regulation is necessary. The essential facilities doctrine is one such regulatory tool. It...

We analyze the welfare implication of regulating the price of last-mile access to consumers provided by local Internet service providers (ISPs). We consider a new two-sided market model that highlights the vertical relationship between two platforms, a local ISP and a large content provider...

National roaming is a measure that can be agreed commercially between operators to extend coverage or can be imposed or facilitated by governments as a means to increase competition amongst networks. It has been used with varying degrees of success in a range of countries, notably in the...