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Working Paper
Incompatibility and investment in ATM networks
The literature on network industries and network effects notes that incompatibility across rival systems can influence firms' incentives to invest in product changes that are beneficial to the consumer. We investigate this phenomenon in the case of bank ATM networks, where the number of ATM locations serves as the measure of product quality and surcharge fees serve as an index of incompatibility. Using as a natural experiment the lifting of a surcharge ban in Iowa (and not in neighboring states), we find that the associated increase in incompatibility for Iowa banks caused a substantial ...
Working Paper
The choice at the checkout: quantifying demand across payment instruments
Dramatic changes have occurred in the U.S. payment system over the past two decades, most notably an explosion in electronic card-based payments. Not surprisingly, this shift has been accompanied by a series of policy debates, all of which hinge critically on understanding consumer behavior at the point of sale. Using a new nationally representative survey, we transform consumers' responses to open-ended questions on reasons for using debit cards to estimate a characteristics-based discrete-choice demand model that includes debit cards, cash, checks, and credit cards. Market shares computed ...
Working Paper
Measuring the cost impact of hospital information systems: 1987-1994
This study measures the impact of information technology (IT) use on hospital operating costs during the late 1980's and early 1990's. Using a proprietary eight-year panel dataset (1987-1994) that catalogues application-level automation for the complete census of the 3,000 U.S. hospitals with more than 100 beds, this study finds that both financial/administrative and clinical IT systems at the most thoroughly automated hospitals are associated with declining costs three and five years after adoption. At the application level, declining costs are associated with the adoption of some of the ...
Working Paper
Limited network connections and the distribution of wages
It is well-known that 50% or more of all jobs are obtained through informal channels i.e. connections to family or friends. As well, statistical studies show that observable individual factors account for only about 50% of the very wide variation in earnings. We seek to explain these two facts by assuming that the linking of workers and firms is mediated by limited network connections. The model implies that essentially similar workers can have markedly different wages and further that the inequality of wages is partly explained by variations in the sizes of workers' networks. Our results ...
Working Paper
Interchange fees and payment card networks: economics, industry developments, and policy issues
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 methods has generated a number of public policy debates. One prominent debate concerns interchange fees. This paper is intended to provide background for understanding the interchange fee debate. The paper describes the operation of a typical payment card system, presents a summary of the economic ...
Working Paper
Consumers' use of debit cards: patterns, preferences, and price response
Debit card use at the point of sale has grown dramatically in recent years in the U.S., and now exceeds the number of credit card transactions. However, many questions remain regarding patterns of debit card use, consumer preferences when using debit, and how consumers might respond to explicit pricing of card transactions. Using a new nationally representative consumer survey, this paper describes the current use of debit cards by U.S. consumers, including how demographics affect use. In addition, consumers' stated reasons for using debit cards are used to analyze how consumers substitute ...
Working Paper
Health care finance and the early adoption of hospital information systems
This study examines the adoption of hospital information systems (HIS), specifically focusing on the connection between the financing of health care and the adoption of these new technologies. Using a recently uncovered dataset detailing the systems installed at over 2300 hospitals, the results indicate that state price regulations slowed the adoption of these systems during the 1970's. In contrast, hospitals increased their adoption of HIS in response to the implementation of Medicare's prospective payment system. The evidence suggests that in the early years, these systems did not have the ...
Working Paper
Competition and price discrimination in the market for mailing lists
This paper examines the relationship between competition and price discrimination in the market for mailing lists. More specifically, we examine whether sellers are more likely to segregate consumers by offering a menu of quality choices (second-degree price discrimination) and/or offering different prices to readily identifiable groups of consumers (third-degree price discrimination) in more competitive markets. We also examine how the fineness with which consumers are divided corresponds to the level of competition in the market. ; The dataset includes information about all consumer ...