David Clarke is Team Lead for Governance, Law and Reforms in the Department of Performance, Finance and Delivery at the World Health Organization in Geneva. His work is on public policy towards the private sector in mixed health systems: how governments arrange, pay for, regulate and contract with private providers and insurers so that they serve the goals of universal health coverage. He leads WHO’s Country Connector on Private Sector in Health (CCPSH) and the Secretariat of the Global Network for Anti-Corruption, Transparency and Accountability in Health (GNACTA). He is also a member of the Lancet Commission on Anti-Corruption in Health.