"The roughly 9.5 percent of all U.S. families that are without some type of transaction account (unbanked) are disproportionately represented by minorities. The unbanked often must rely on alternative ways to carry out basic financial transactions such as cashing payroll checks and paying bills....

Since the mid-1990s, the U.S. payment system has been undergoing a transformation featuring a significant decline in the use of paper checks that has been quite uneven across consumers and not well understood. This paper estimates econometric models of consumers’ adoption (extensive margin)...