The Durbin Amendment to the Dodd-Frank financial reform legislation capped debit card interchange fees for banks with assets of $10 billion. Credit card and prepaid card interchange fees were not regulated. The cap, which took effect on October 11, 2011, cut the average interchange fee for...

Using data from the United States and Canada, we quantify consumers’ net pecuniary cost of using cash, credit cards, and debit cards for purchases across income cohorts. The net cost includes fees paid to financial institutions, rewards received from credit or debit card issuers, and the...

The cost to merchants of taking payment on debit cards declined by more than $7 billion annually as a result of the Durbin Amendment to the Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010, while the effective cost to issuers of providing debit card services to consumers...

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...

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...