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The Impact Of Payment With Credit Card

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Abstract: In a field experiment, we measure the impact of payment with credit card as compared with cash on insurance company employees’ spending on lunch in a cafeteria. We exogenously changed some diners’ payment medium from cash to a credit card by giving them an incentive to pay with a credit card. Surprisingly, we find that credit cards do not increase spending. However, the use of credit cards has a differential impact on spending for revolvers (who carry debt) and convenience users (who do not): Revolvers spend less when induced to spend with a credit card, whereas convenience users display the opposite pattern.
Keywords: Credit cards, consumer spending, field experiments
JEL Codes: C9, D1
We thank Uri Simonsohn and Ed Green for …show more content…

This decline in savings roughly coincided with a secular increase in the dissemination and use of credit cards, raising at least the possibility that the proliferation of credit cards contributed to the downward trend. While it is true that the total level of credit card debt is too small to account for much of the decrease in the savings rate
(Parker 1999), it is possible that credit cards could contribute to low savings if accumulated credit card debt is being transferred to other forms of debt, such as borrowing against real estate. Beyond the rationale for regulation based on macroeconomic goals, there might also be a rationale for the regulation of credit cards based on individual welfare. If credit card use leads to supra-optimal spending and ultimately to personal financial hardship, their regulation could be potentially justified on much the same basis as the regulation of certain types of drugs, which are outlawed because they are viewed as too tempting and dangerous. There is, in fact, some evidence of a correlation between debt and financial distress. For example, Brown et al. (2005) observe a negative correlation between unsecured debt, including credit card debt, and psychological well-being. Brown et al. also found no comparable relationship between secured—i.e. mortgage—debt and well-being. But again, one cannot infer causation; it may be that credit card debt is

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