Does the shadow economy mitigate the effect of cashless payment technology on currency demand? dynamic panel evidence

Recent government attempts at reducing currency demand by promoting cashless payment technology, e.g., subsidies for point-of-sale terminals, have met with mixed success. In this paper, we argue that one reason is the shadow economy: as the size of the unrecorded economy grows, cashless payment technology has a weaker effect on the demand for cash. To test this hypothesis, we analyse a panel of 37 countries over the years 2004-2014 including data on point-of-sale terminals, financial cards in circulation, and the value of total card payments. Using the first principal component of these variables as a proxy for cashless payment technology, we find that a 1% increase in underground activity lowers the impact of cashless technology on the velocity of currency in circulation by 0.3%. This decrease is large enough that the average marginal effect of cashless technology on currency velocity is statistically insignificant for several high-shadow countries over the sample period. Overall, our results suggest that government subsidization of digital payment infrastructure will be ineffective when shadow markets are prevalent.