This paper studies the relationship between the level of economic development and the incidence of three forms of payments across countries, namely the incidence of bank accounts, digital payments, and mobile money accounts among the adult populations across countries. It presents simple...

This study collects data on the sophistication of technologies used at the business function level for a representative sample of firms in Vietnam, Senegal, and the Brazilian state of Ceara. The analysis finds a large variance in technology sophistication across the business functions of a firm....