The spokes model of nonlocalised spatial competition provides a new analytical tool for differentiated oligopoly and a representation of spatial monopolistic competition. An increase in the number of firms leads to lower equilibrium prices when consumers have relatively high product valuations,...

We analyse charges levied by mobile telephone networks to deliver calls. We integrate two literatures: one analysing calls from the fixed network, where predicted unregulated termination charges are too high, and one analysing calls from rival mobile networks, where predicted charges are too...

This paper discusses industries such as telecommunications where firms each have their own customers and must interconnect with other firms to provide a comprehensive service. Two scenarios are considered: (1) the case of a symmetric, unregulated industry and (2) the case of an industry with a...