This paper analyzes the impact of music file sharing on CD purchases. Traditionally, two arguments are opposed concerning the impact of music file sharing on CD sales. On the one hand, MP3 downloads only reduces sales of legitimate CDs (the "competition effect"). On the other hand, consumption...

We analyse competition between vertically-integrated operators who build infrastructure and provide access in different geographical areas. Under full commitment, the regulator sets socially-optimal access rates that depend on the local degree of infrastructure competition. If he can only commit...

In this paper we provide a model of Research Joint Venture (RJV), and study the incentives of competing firms to cooperate in product development. Firms that participate in the RJV decide on the product components for joint development, i.e., they decide on how much to cooperate. We consider...

In this paper we study the impact of different forms of access obligations on firms’ incentives to migrate from the legacy copper network to ultra-fast broadband infrastructures. We analyse three different kinds of regulatory interventions: geographical regulation of access to copper networks...

We consider an unregulated incumbent who owns a broadband infrastructure and decides on how much access to provide to a potential entrant. The level of access determines the amount of investment the entrant needs to undertake to enter the market, and the intensity of post-entry competition. We...