While payment card usage has increased dramatically, the stock of outstanding currency has not declined as rapidly. Amromin and Chakravorti analyze changes in cash demand for 13 advanced economies from 1988 to 2003 by separating cash into three denomination categories to disentangle its store of wealth and payment functions. Defining...
The proportion of retail, non-cash payments made electronically in the U.S. grew from 15% in 1979 to 40% in 2000. A recent Chicago Fed conference addressed the important question of whether today's payment networks can adequately support emerging payment technologies.