We introduce a flexible model of telecommunications network competition with non-uniform calling patterns, which account for the fact that customers tend to make most calls to a small set of contacts. Equilibrium call prices are distorted away from marginal cost, and competitive intensity is...

We consider a market where consumers mix content offered by different firms. We show how tariff structures have an impact on firms' profits and efficiency. As compared to pure linear pricing, when firms charge two-part tariffs they make higher profits, while consumers are worse off and the...