We explore the effects of round number preferences in credit card payments. Payments at round numbers are very common: 70% of manual non-full credit card payments are at round numbers. Using minimum payment amounts as a natural experiment for the lower bound on payments, we show stickiness in...

Using transaction data from a sample of 1.8 million credit card accounts, we provide the first field test of a major prediction of Prelec and Loewenstein's (1998) theory of mental accounting: that consumers will pay off expenditure on transient forms of consumption more quickly than expenditure...

Using data from multiple card issuers, we show that the most common penalty fee type incurred by credit card holders – late payment fees – declines sharply over the first few months of card life. This phenomenon is wholly due to some consumers adopting automatic payments after a late payment...

In Gathergood et al. (2019), we studied credit card repayments using linked data on multiple cards from the United Kingdom. We showed that individuals did not allocate payments to the higher interest rate card, which would minimize the cost of borrowing, but instead made repayments according to...

In Gathergood et al. (forthcoming), we studied credit card repayments using linked data on multiple cards from the United Kingdom. We showed that individuals did not allocate payments to the higher interest rate card, which would minimize the cost of borrowing, but instead made repayments...

In Gathergood et al. (2019), we studied credit card repayments using linked data on multiple cards from the United Kingdom. We showed that individuals did not allocate payments to the higher interest rate card, which would minimize the cost of borrowing, but instead made repayments according to...

Automatic payments are increasingly common. The psychologies of the prominent of number, defaults and inattention combine to create an unexpected side effect of automatic payments. We see that credit card holders set a default automatic payment to match their modal repayment behavior. For those...