







Motivated by recent policy intervention into payments markets, we develop and estimate a structural model of adoption and use of payment instruments by U.S. consumers. Our structural model differentiates between the adoption and use of payment instruments. We evaluate substitution among payment instruments and welfare implications. Cash is the most significant substitute to debit cards in retail settings, whereas checks are the most significant in bill‐pay settings. Furthermore, low income consumers lose proportionally more than high income consumers when debit cards become more expensive, whereas the reverse is true when credit cards do.
Why Do Shoppers Use Cash? Evidence from Shopping Diary Data
Recent studies find that cash remains the dominant payment choice for small‐value transactions despite the prevalence of alternative payment methods such as debit and credit cards. An important policy question is whether consumers truly prefer using cash or merchants restrict card usage. Using unique shopping diary data, we estimate a payment choice model with individual heterogeneity, controlling for merchants' acceptance of cards. Based on a policy simulation imposing universal card acceptance among merchants, we find that overall cash usage would decrease by only 8.0 percentage points, implying that cash usage in small‐value transactions is driven mainly by consumer preferences.

Do Payment Mechanisms Change the Way Consumers Perceive Products?
Abstract. Do payment mechanisms change the way consumers perceive products? We argue that consumers for whom credit cards (cash) have been primed focus mor

Differences in Consumer Purchase Behavior by Credit Card Payment System
Abstract. A conceptualization of the relationships between alternative payment systems and various environmental and behavioral variables, which may serve

Credit Card Debt and Consumer Payment Choice: What Can We Learn from Credit Bureau Data?
We estimate a two-stage Heckman selection model of credit card adoption and use with a unique dataset that combines administrative data from the Equifax credit bureau and self-reported data from a representative survey of consumers. Higher-income consumers carry higher credit card balances, but they tend to repay those balances each month. Credit card revolvers have lower income and are less educated. Revolvers are twice as likely to use debit cards as credit cards for payments, but they carry much higher balances on their credit cards. The high cost of paying off credit card debt likely exacerbates existing inequalities in disposable income. Unlike the mortgage market, we find no evidence for lenders’ cutoff between subprime and prime consumers in the credit card market.
The moderating role of income on consumers’ preferences and usage for online and offline payment methods
In this paper we examine consumer attitudes towards a payment method, which is a key factor affecting the probability of completing a transaction offline and online. More specifically, we constructed a model that surveyed the offline and online usage of prepaid e-cash, debit cards, credit cards and cash. User perceptions of the attractiveness of e-cash and various traditional payment means were also empirically assessed. Consumer attitudes towards a payment technology were found to be influential on users’ perceptions in both online and offline environments. User perceptions of offline purchases with a payment technology had significant and positive effects on the corresponding online usage perceptions. The effects of our research model are contingent on the income level of users. Our findings have significant implications, as they could help shed light on why consumers abandon their shopping carts and do not complete their transactions, which could potentially play a significant role when it comes to designing applications targeting sspecific consumer segments.

Cash versus Debit Card: The Role of Budget Control
Due to the financial crisis, an increasing number of households face financial problems. This may lead to an increasing need for monitoring spending and budgets. We demonstrate that both cash and the debit card are perceived as helpful in this respect. We show that, on average, consumers responsible for financial decision making within a household find cash and the debit card equally helpful for monitoring their household finances. Individuals differ in major respects, however. In particular, low earners and the liquidity‐constrained prefer cash as a budgeting tool. Finally, we present evidence that at an aggregated level, such preferences strongly affect consumer payment behavior. These findings suggest that the substitution of cash by cards may slow down because of the financial crisis.

What Do Consumers Really Pay on Their Checking and Credit Card Accounts? Explicit, Implicit, and Avoidable Costs
(May 2009)
Families' Use of Payment Instruments During a Decade of Change in the U.S. Payment System
The Federal Reserve Board of Governors in Washington DC.

Purchase Justifiability Drives Payment Choice: Consumers Pay with Card to Remember and Cash to Forget
AbstractAlthough consumers often have multiple payment methods at their fingertips, such as cash and credit/debit cards, prior research is silent on how consumers choose between them. We home in on a key element of purchase—purchase justifiability—that affects how consumers choose to pay. Analysis of 118,042 real-world purchases and six experiments reveals that when consumers are motivated to forget (vs. remember) a purchase because they see it as difficult (vs. easy) to justify, they have an increased preference to pay with cash (vs. card) because cards create a “paper/electronic trail” that aids memory retrieval. These payment preferences are strongest among consumers most likely to recall/track their card spending, and manifest only when card expenses are trackable. We reconcile our results with the classic effect of payment method on pain of paying and discuss implications for merchants and for financial institutions designing payment methods of the future.

A Mega-Replication of the Effect of Cash Versus Card Payment on Pain of Paying: Magnitude, Behavioral Outcomes, and Moderators
Abstract We revisit the widely accepted finding that paying with cash is more painful than paying with card by conducting the first systematic mega-replication (including 13 large-scale preregistered replications; a total of 32,371 participants, 65 products, and 57 price points ranging from $1.09 to $400). The aggregate evidence reveals four insights: (1) leveraging a broad set of established paradigms, we replicate the finding that paying with cash is more psychologically painful than paying with card, even among today’s consumers who own multiple cards, digital wallets, and virtual currencies; (2) comparing two outcome variables—amount spent and willingness-to-pay (WTP), we find a more reliable and larger overall direct effect of payment method on amount spent than on WTP; (3) these direct effects of payment method on outcome variables are mediated by pain of paying; (4) the mode-of-payment effect on pain of paying (and thereby on outcome variables) is moderated by individual differences, particularly the relative frequency of using cash versus card. We outline actionable guidance and future directions for researchers and practitioners interested in examining mode-of-payment effects, and discuss the value of and suitable approaches for future theory-driven large-scale replications.

Time to Cut Up Those Debit Cards? Effect of Payment Mode on Willingness to Spend
Financial industry data indicate that consumers increasingly prefer debit cards over credit cards, especially as a means of enforcing financial self-discipline. Given prior research suggesting that credit cards act as spending facilitating stimuli, this move toward reduced credit card use would appear to be in the right direction. Ironically, however, the same logos that were implicated in facilitating spending with credit cards are the logos that appear on debit cards. In what should serve as an eye-opener to consumers, it is found that exposure to debit card logos does result in an increased willingness to spend, similar to credit cards.
Rewards and Misperceived Spending: Experimental Evidence from Credit Cards
Using proprietary data, a survey, and an experiment with a major bank in China, this paper studies how credit card rewards affect perceived and actual consumer
Always Leave Home Without It: A Further Investigation of the Credit-Card Effect on Willingness to Pay
In studies involving genuine transactions of potentially high value we show that willingness-to-pay can be increased when customers are instructed to use a credit card rather than cash. The effect may be large (up to 100%) and it appears unlikely that it arises due solely to liquidity constraints. In addition to demonstrating the effect, we provide a methodology for detecting it, and our findings suggest a source of variance to test alternative explanations.
Managing Mental Accounts: Payment Cards and Consumption Expenditures
Abstract Does mental accounting matter for total consumption expenditures? We exploit a unique setting in which individuals exogenously receive a new payment card, without requesting one. Using random variation in the time of receipt, we show that individuals temporarily increase total consumption expenditure by making purchases with the new card without reducing spending on the others. We do not observe a corresponding increase in indebtedness. Total consumption expenditure rises even for the least liquidity-constrained individuals. The evidence is consistent with consumers treating methods of payment as nonfungible budget categories, as suggested by models of mental accounting and narrow bracketing.

Managing Mental Accounts: Payment Cards and Consumption Expenditures
Does mental accounting matter for total consumption expenditures? We exploit a unique setting in which individuals exogenously received a new credit card, without requesting one. Using random variation in the time of receipt we show that individuals temporarily increase total consumption expenditure by making purchases with the new card without reducing spending on the others. We do not observe a corresponding increase in indebtedness. Total consumption expenditure rises even for the least liquidity-constrained individuals. The evidence is consistent with consumers treating methods of payment as nonfungible budget categories, as suggested by models of mental accounting and narrow bracketing.

The Effect of Payment Transparency on Consumption: Quasi-Experiments from the Field
Recent research suggests that the method of making a payment can influence the willingness to pay and consumption behavior. In this manuscript, we argue that payment mechanisms differ from each other along the dimensions of transparency, and that the degree of transparency correlates positively with the pain of paying using the mechanism, and negatively with consumption and spending. We replicate previous experimental results using quasi-experiments from the field, and find that the lower the payment transparency, the greater is the consumption. However, this effect is weak for products whose consumption rates are inflexible.