Staff Directory

William Cook

Senior Financial Sector Specialist

Based in Bogota, William Cook focuses on payments, financial market infrastructure, and digital business models. Before joining CGAP, William held a variety of roles in financial services, including six years with Ernst & Young LLP in the organization’s advisory and audit practices.

By William Cook

Blog

How Do Kenyans Really Use M-PESA?

Transaction data shows mobile money agents are more like petrol stations than barber shops, with few customers showing loyalty to particular agents.
Research

National Payments Corporation of India and the Remaking of Payments

The story of National Payments Corporation of India sheds light on the quick and robust transformation of India’s payment systems. The lessons learned from the NPCI success story can be useful for policy makers in financial inclusion and other markets.
Blog

Should Funders Support Switches for Mobile Payment Interoperability?

Mobile payment switches aren’t the only path to interoperable financial systems – and they aren’t always the best path. Here are three questions funders should ask before they commit to building a switch.
Blog

East African Interoperability: Dispatches from the Home of M-Pesa

Kenyans can now send money between the country's two largest digital wallet services, Airtel and M-Pesa, the latest step toward interoperability in East Africa.
Research

Interoperability in East Africa: Dispatches from the Home of Mobile Money