created in the hope of increasing competition. One example is the licensing of cellular telephone services in the United … for natural monopolies is forgone because it is believed that two firms provide sufficient competition to prevent … duopolistic competition leads to competitive market outcomes. We find that cellular prices are significantly above competitive, as …

extend the framework of Armstrong-Laffont-Rey-Tirole by introducing an investment stage, prior to price competition. We show …

source of two competition problems: underprovision of calls and permanent disadvantages for small networks. We consider these …

The most important issues in auction design are the traditional concerns of competition policy-preventing collusive …

This paper questions whether competition can replace sector-specific regulation of mobile telecommunications. We show … negotiations. A light-handed regulatory policy can induce effective competition. Call prices are close to the marginal cost if the …