Cash users withdraw money from automated teller machines (ATMs) to finance cash payments. However, most ATMs in the United States dispense only multiples of $20 bills. The paper first constructs a consumer's optimization model showing how the precise denomination of dollar bills available from...

The emergence of cashless stores has led several cities and states to ban such stores. This paper investigates this issue by characterizing consumers who pay cash for in-person purchases and consumers who do not have credit or debit cards. I construct a model of consumer payment choice and use...