ABSTRACT
During the 1990s, an extensive deregulation and privatization process dramatically changed the market structure and the shape and intensity of regulation in many infrastructure industries around the world. Energy, telecommunications, water, and several transport sectors have all experienced a wide liberalization process mostly aimed at opening them up to competition. As a consequence of this reform the economic literature has recently witnessed a renewed interest in studying the implications for competition policy of these changes. It appears that one of the most relevant contributions is that the network structure of these industries provides new perspectives to be considered in detail.1
