The differential between on-net and off-net prices, for example on mobile telephony networks, is an issue that is hotly debated between telecoms operators and regulators. Small operators contend that their competitors' high off-net prices are anticompetitive. We show that if the utility of...

This paper examines the impact of regulatory intervention to cut termination rates of calls from fixed lines to mobile phones. Under quite general conditions of competition, theory suggests that lower termination charges will result in higher prices for mobile subscribers, a phenomenon known as...

We compare the advertising intensity and content of programming in a market with competing media platforms. With pay-tv media platforms have two sources of revenues, advertising revenues and revenues from viewers. With free-to-air media platforms receive all revenues from advertising. We show...

This Paper analyses the incentives that operators have to invest in facilities with different levels of quality. A network of better quality is more expensive but may give an important edge to an operator when competing against a rival. We extend the framework of Armstrong-Laffont-Rey-Tirole by...

We develop a model of logit demand that extends to a multi-firm industry the traditional duopoly framework of network competition with access charges. Firstly, we show that, when incumbents do not face the threat of entry and compete in prices, they inefficiently establish the reciprocal access...

We study bargained input prices where up and downstream firms can choose alternative vertical partners. We apply our model to airport landing fees where a number of interesting policy questions have arisen. For example, what is the impact of joint ownership of airports? Does airline...

We propose a two-sided model with two competing Internet platforms, and a continuum of Content Providers (CPs). We study the effect of a net neutrality regulation on capacity investments in the market for Internet access, and on innovation in the market for content. Under the alternative...

We consider the impact of a regulatory process forcing an incumbent telecom operator to make its local broadband network available to other companies (local loop unbundling, or LLU). Entrants are then able to upgrade their individual lines and offer Internet services directly to customers....

This Paper addresses the question of third-degree price discrimination in input markets. I propose a solution that relies on a method that decomposes the upstream monopolist’s profit into two parts, one that depends on average input prices, and one that depends on their distribution. I am able...

This Paper tests the presence of multiple independent submarkets in the Italian motor insurance industry. Independence is motivated by administrative boundaries among provinces and by further locational reasons. We find that the independence effects are sufficient to induce a minimum degree of...