This paper discusses aspects of recent policy towards mobile telephony in the U.K., including (i) the level of retail charges for calls from fixed to mobile networks, (ii) the level of call termination charges on mobile networks, and (iii) the level of connection subsidies offered by mobile...

This paper surveys recent economic research on price discrimination, both in monopoly and oligopoly markets. Topics include static and dynamic forms of price discrimination, and both final and input markets are considered. Potential antitrust aspects of price discrimination are highlighted...

This chapter reviews recent theoretical work on the design of regulatory policy, focusing on the complications that arise when regulated suppliers have better information about the regulated industry than do regulators. The discussion begins by characterizing the optimal regulation of a monopoly...

This paper discusses the incentive to bundle when consumer valuations are non-additive and/or when products are supplied by separate sellers. Whether integrated or separate, a firm has an incentive to introduce a bundle discount when demand for the bundle is more elastic than the overall demand...

This paper discusses the incentive to bundle when consumer valuations are non-additive and/or when products are supplied by separate sellers.  Whether integrated or separate, a firm has an incentive to introduce a bundle discount when demand for the bundle is more elastic than the overall...

This paper studies sales techniques which discourage consumer search by making it harder or more expensive to return to buy after a search for alternatives. It is unilaterally profitable for a seller to deter search under mild conditions, but sellers can suffer when all do so. When a seller...

This paper examines the implications of "prominence" in search markets.  We model prominence by supposing that the prominent firm will be sampled first by all consumers.  If there are no systematic quality differences among firms, we find that the prominent firm will charge a lower price than...

We examine the impact of multiproduct nonlinear pricing on profit, consumer surplus and welfare in a duopoly. When consumers buy all their products from one firm (the one-stop shopping model), nonlinear pricing leads to higher profit and welfare, but often lower consumer surplus, than linear...

This paper examines the implications of “prominence” in search markets. We modelprominence by supposing that the prominent firm will be sampled first by all consumers.If there are no systematic quality differences among firms, we find that the prominentfirm will charge a lower price than its...

We provide a framework for analyzing two-sided markets that allows for different degrees of product differentiation on each side of the market. When platforms are viewed as homogenous by sellers but heterogeneous by buyers, we show that competitive bottlenecks arise endogenously. In equilibrium,...