I show that an introduction of a liability on firms, proportional to the difference between consumers' beliefs and the effective terms of purchase/contract, can improve both social welfare and consumer surplus, depending on the relative magnitudes of: 1) decrease in the gap between the beliefs...

For many goods and services, such as cellular-phone service and debit-card transactions, the price of the next unit of service depends on past usage. As a result, consumers who are inattentive to their past usage but are aware of contract terms may remain uncertain about the price of the next...

A controversial aspect of payment cards has been the “no-surcharge rule.” This rule, which is part of the contract between the card provider and a merchant, states that the merchant cannot charge a customer who pays by card more than a customer who pays by cash. In this paper we consider the...

Approximately half of credit card holders in the United States regularly carry unpaid credit card debt. These so-called "revolvers" exhibit payment behavior that differs from that of those who repay their entire credit card balance every month. Previous literature has focused on the adoption of...