The market for payments is an important two-sided one, where consumers benefit from increased merchant acceptance of payment cards and vice versa. The dependence between the decisions that are made on each side of the market results in various network externalities that are often discussed but...

Banks impose a variety of account fees, and credit card issuers impose a variety of fees related to card usage. Using detailed data from a 2021 representative diary survey of US consumers, we investigate whether lower-income consumers and Black consumers are more likely to pay bank account or...

Credit unions and banks charge retailers that accept their credit cards a fee, referred to as interchange, for processing each transaction. The fee is a proportion of the transaction and generally depends on the volume of business, the risk of fraud in each transaction, the goods or services...

Recent technological advancements and the digitization of most financial services have transformed the way by which individuals deal with their financial transactions. It has also affected the focus of financial institutions’ investments, as well as the sectors’ market dynamic, with the...

We study the relationship between interchange fees and card transactions in a large panel of countries and assess the impact of the Interchange Fee Regulation, introduced in 2015 in the European Union, on card usage. For our purposes, we take advantage of a newly assembled dataset covering...

This paper introduces cashless stores and cashless consumers into a model of interchange fees. Under this modification, the interchange fee set by the card organization exceeds the optimal level. Furthermore, the gap between this fee and the optimal fee increases with the fraction of consumers...

One cannot be a fully conversant antitrust practitioner or academic in today’s antitrust environment without a basic, if not sophisticated, understanding of markets involving multisided platforms or so-called ecosystems—multiple horizontal and vertical relationships that center around...

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...

We test for racial discrimination in the prices charged by mortgage lenders. We construct a unique dataset where we observe all three dimensions of a mortgage's price: the interest rate, discount points, and fees. While we find statistically significant gaps by race and ethnicity in interest...

This appendix contains six sections. The first section compares our sample to the broader subprime mortgage market. The second section describes our algorithm for inferring broker race and ethnicity. The third section considers rejection and funding uncertainty as potential explanations for...

This paper considers the organization of a single (domestic) payment system. When card issuers that are members of a payment system set their fees individually, this gives rise to a free-riding problem, as in providing access to different customers, card issuers are complements from the...

We test for racial discrimination in the prices charged by mortgage lenders. We construct a unique dataset where we observe all three dimensions of a mortgage's price: the interest rate, discount points, and fees. While we find statistically significant gaps by race and ethnicity in interest...

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...

We test for pricing disparities in mortgage contracts using a novel dataset that allows us to observe the race and ethnicity of both parties to the loan. We find that minorities pay between three and five percent more in fees than similarly qualified whites when obtaining a loan through the same...

This paper analyzes the impact of interchange fee regulation on the investment incentives of a payment card platform in the presence of full merchant internalization. We distinguish between investment in consumer and retailer services. We find that the optimally regulated interchange fee can be...

In 2013, I served as a court-appointed expert in consolidated class and individual plaintiff antitrust litigation against Visa and Mastercard in the Eastern District of New York. The litigation involved a challenge to default interchange fees established by Visa and Mastercard, and to certain...

Interchange fees (IF) are fees that a cardholder's bank (issuer) receives from the merchant's bank (acquirer) when a card payment is executed. Interchange fees are an important part of the fees charged to merchants by acquirers. Because of their level and fragmentation, interchange fees can...

In many countries around the world, electronic card-based payments have been replacing older types of payments at a rapid rate. In the United States, use of both debit cards and credit cards has been rising rapidly, while check volumes have been declining. The increased use of electronic payment...

Ronald Coase famously argued that “if an economist finds something – a business practice of one sort or other – that he does not understand, he looks for a monopoly explanation”. So it is with credit card interchange fees. Intellectual confusion has led to the phenomenon of interchange...

In 2004 the SEC began requiring mutual funds to include the dollar amount of fund fees in shareholders reports. Before that, funds reported returns net of fees and didn't disclose fees separately. This natural experiment allows me to study the impact of separate reporting of fees on the level of...