Payment choice and currency use: Insights from two billion retail transactions

Using three years of transactions data from a discount retailer with thousands of stores, we study payment variation along three dimensions: transaction size and location; weekly and monthly frequencies; and longer time horizons. In each case, we connect empirical patterns to theories of money demand and payments. We show that cross-sectional and time-series payment patterns are consistent with a theoretical framework in which individual consumers choose between cash and non-cash payments based on a threshold transaction size, and we evaluate factors that may account for the variation in threshold distributions across locations and time.