We introduce a model of a rational credit card user's rather complex usage choices and develop an empirical framework to test its predictions. Employing a large national database of U.S. card accounts, we estimate how prices impact card usage and find that price effects are mostly well explained...

We document and analyze price dispersion in the U.S. mortgage market. We find significant price dispersion in posted prices in the retail channel: for example, a consumer with a prime credit score and with a 20% down payment for a conforming loan might see a spread in interest rates of 50 basis...

We study consumer use of two short-term credit products offered by banks: overdraft and deposit advance. On average, consumers who use overdraft pay 13 percent of their monthly deposits to cover fees; consumers who use deposit advance pay less than 2 percent. Data averages show that fees grow...