Staff Directory

William Cook

Senior Financial Sector Specialist

Based in Nairobi, 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

Connecting the Dots: Interoperability and Technology

For interoperability to work, technology must do more than move transactions from Point A to Point B. It must be optimized to ensure security, encourage use, promote innovation and handle the inevitable time when something goes wrong.
Blog

Balancing the Economics of Interoperability in Digital Finance

Interoperability in digital payments hinges on more than the right technology. It also requires the right balance of economic incentives for participants.
Blog

Rules of the Road: Interoperability and Governance

Payment schemes like Visa and Mastercard emerged from banks agreeing to the terms needed to safely and efficiently exchange payments. What rules should digital payments providers follow?
Blog

Interoperability and Customer Value

Interoperability makes it possible for customers to transact freely without compatibility issues, but its benefits don't end there. Here are three ways interoperability can advance financial inclusion.
Blog

Who Are Kenya’s Financially Excluded?

In Kenya, where nearly everyone knows about mobile money and a majority live within walking distance of an agent, why do nearly 2 in 10 adults lack access to formal financial services? And what can be done to reach them?