"During the last decade, debit card transactions grew rapidly in most advanced countries. While check usage declined and has almost disappeared in some countries, the stock of currency in circulation has not declined as fast. We use panel estimation techniques to analyze the change in...

The provision of retail payment services is complex with many participants engaging in a series of interrelated bilateral transactions and subject to large economies of scale and scope along with strong adoption, usage and network externalities. This makes sound public policy difficult. We focus...

A core function of any banking system is the provision of payments. However, a greater number of non-banks are becoming part of the payments landscape. Payments can be made via fiat or crypto currencies, bank credit or deposits, or funds transfers on the books of non-bank payment providers. Most...