Contingent charges for financial services, such as fees for unauthorized overdrafts, are often controversial. We study the economics of contingent charges in a stylized setting with naive and sophisticated consumers. We contrast situations where the naive benefit from the presence of...

We examine competitive non-linear pricing in a model in which consumers have heterogeneous and elastic demands and can buy from more than one supplier. It is an equilibrium for firms to offer a menu of efficient two-part tariffs, where the discount for one-stop shopping is such that the...

We present a model in which a principal delegates the choice of project to an agent with different preferences. The principal determines the set of projects from which the agent may choose. The principal can verify the characteristics of the project chosen by the agent, but does not know which...

The Baumol-Willig efficient component pricing rule states that it is efficient to set the price of access to an essential facility equal to the direct cost of access plus the opportunity cost to the integrated access provider. The authors analyze the relevant notion of 'opportunity cost' under...

This paper analyzes some effects of price discrimination policy in a model where a dominant incumbent firm faces an endogenous degree of competition in one of its two markets. Banning price discrimination tends to encourage more entry, which is desirable if the entrant is as efficient as the...

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...

Should a multiproduct monopolist whose "average price" is capped by regulation be allowed to engage in (third-degree) price discrimination? If the cap applies to a price index with weights proportional to demands at uniform prices, then price discrimination benefits consumers as well as the...