This paper extends the standard model of bundling to allow products to be substitutes and for products to be supplied by separate sellers. Whether integrated or separate, firms have an incentive to introduce bundling discounts when demand for the bundle is elastic relative to demand for...

We discuss the impact of consumer protection policies on consumers' incentives to become informed of the best deals available in the market. In a market with costly information acquisition, we find that imposing a cap on suppliers' prices reduces the incentive to become informed of market...

We present a model in which some consumers shop on the basis of price alone, without paying attention to product quality. A firm may "cheat" and offer a worthless product to exploit these inattentive consumers. In the unique symmetric equilibrium, firms follow a mixed strategy involving both...

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 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 present a model in which a principal delegates the choice of project to an agent with different preferences. A project`s characteristics are verifiable once presented to the principal, but the principal does not know how many projects are available to the agent. The principal chooses the set...

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 article 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 its...

There are many situations in which a principal delegates decisions to a better-informed agent but does not choose to give full discretion. This paper discusses one reason why this might be desirable: the agent may have tastes that differ from those of the principal. Limiting the agent's...