The present study investigates how increasing bank accounts and bank concentration affect mobile money innovations in 148 countries. It builds on scholarly and policy concerns in the literature that increasing bank accounts may not be having the desired effects on financial inclusion on the one...

We seek to analyze the extent and sources of network externalities for the automated clearinghouse (ACH) electronic payments system using a quarterly panel data set on individual bank adoption and usage of ACH. We provide three methods to identify network externalities using this panel data. The...