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...

In an industry where regulated firms interact with unregulated suppliers, we investigate the welfare effects of a merger between regulated firms when cost synergies are uncertain before the merger and their realization becomes private information of the merged firm. The optimal merger policy...

I claim that the urgently needed telecommunications regulatory reform must rest on three specific principles or policies for enhancing economic efficiency. First, the pursuit of a dynamic regulatory approach based on implementing proper competition processes and information systems rather than...

We analyse competition between perfectly substitutable networks. Monopolization can be sustained in equilibrium by asymmetric access prices whereby entry is deterred by a set of margin squeezes. A regulatory package consisting of (i) mandatory interconnection; (ii) reciprocal access prices;...

This article considers whether a monopolist is able to deter more efficient entrants through contracting with buyers. In the antitrust literature, the Chicago School's stand is that such contracts cannot be anticompetitive; hence, vertical contracts should be accorded per se legal status. In a...

Over the past three decades, antitrust laws have proliferated across the globe. International institutions and governments have promoted antitrust policy as an important regulatory tool to enhance economic performance. At the same time, we have scant empirical evidence on whether these policies...

Over the last ten years, the European Commission has been trying to increase competition in the postal sector. In order to achieve this goal, as well as other objectives such as the enhancement of the quality of postal services in the EU and the maintenance of universal service, the Commission...