We analyze an experiment conducted by a large U.S. bank that offered consumers achoice between two credit card contracts, one with an annual fee but a lowerinterest rate and one with no annual fee but a higher interest rate. We findthat on average consumers chose the credit contract that minimized their costs.A substantial fraction of consumers (about 40%) still chose the suboptimalcontract. Nonetheless, the probability of choosing the suboptimal contractdeclines with the dollar magnitude of the potential error, and consumers withlarger errors are more likely to subsequently switch to the optimalcontract.

Given the growth in home equity lending during the 1990s, it is imperative that lenders and regulators understand the risks associated with this segment of the residential mortgage market. Using a unique panel data set of over 135,000 homeowners with second mortgages, our analysis indicates that significant differences exist in the prepayment and default probabilities of home equity loans and lines, providing insights into bank minimum capital requirements. We find that households with equity loans are relatively more sensitive to changes in interest rates. By contrast, households with equity lines are more sensitive to appreciation in property value.

We use a new panel data set of credit card accounts to analyze how consumers responded to the 2001 federal income tax rebates. We estimate the monthly response of credit card payments, spending, and debt, exploiting the unique, randomized timing of the rebate disbursement. We find that, on average, consumers initially saved some of the rebate, by increasing their credit card payments and thereby paying down debt. But soon afterward their spending increased, counter to the permanent income model. Spending rose most for consumers who were initially most likely to be liquidity constrained, whereas debt declined most (so saving rose most) for unconstrained consumers.