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...
Chakravorti and Kobor provide a framework to study the creation and adoption of innovations by payment providers and processors. The authors identify several motivating factors for banks and nonbanks to invest in payment innovations. In addition, they discuss the evolutionary process of payment innovations from inception to commoditization and recognize...