Abstract:Since the mid-1990s, the U.S. payment system has been undergoing a paper-toelectronics transformation featuring a significant decline in the number of paper checks written for payment. The timing and magnitude of the transformation have been surprising, and the future direction of payments is quite uncertain, largely because of a lack of data and research that explain why agents choose payment instruments. Using data from new surveys on consumer payment behavior, this paper shows that the large and relatively sudden decline in aggregate check use is not spread evenly among consumers despite the widespread availability of cheaper, more convenient, and better-timed electronic alternatives. Fundamental characteristics of payment instruments -cost, convenience, payment timing, and the like -are much more important determinants of payment choice than demographics or determinants of money demand, and these characteristics raise the cross-section explanatory power of econometric models of payment demand by three-fold or more.