Someone seems to have computed the cash vs CC money flow: https://www.bostonfed.org/publications/public-policy-discussion-paper/2010/who-gains-and-who-loses-fro

Someone seems to have computed the cash vs CC money flow: https://www.bostonfed.org/publications/public-policy-discussion-paper/2010/who-gains-and-who-loses-from-credit-card-payments-theory-and-calibrations.aspx https://www.bostonfed.org/publications/public-policy-discuss... "On average, each cash-using household pays $149 to card-using households and each card-using household receives $1,133 from cash users every year."