Dirty money: Does the risk of infectious disease lower demand for cash?

The COVID-19 pandemic is a global crisis like no other in modern times, and there is a growing apprehension about handling potentially contaminated cash. This paper is the first empirical attempt in the literature to investigate whether the risk of infectious diseases affects demand for physical cash. Since the intensity of cash use may influence the spread of infectious diseases, this paper utilizes two-stage least squares methodology with instrumental variable to address omitted variable bias and account for potential endogeneity. The empirical analysis indicates that the spread of infectious diseases lowers demand for physical cash, after controlling for macroeconomic, financial, and technological factors. This effect, withstanding several robustness checks, is economically and statistically significant. While the transactional constraints imposed by the coronavirus pandemic could become a catalyst for the use of digital technologies around the world, electronic payment methods may not be universally available in every country owing to financial and technological bottlenecks.