Damian Walker is Deputy Director of Data and Analytics at the Bill & Melinda Gates Foundation. Prior to the joining the foundation in 2010, Damian was an Associate Professor in the Department of International Health, Bloomberg School of Public Health, Johns Hopkins University. Damian has published over 80 peer-reviewed journals, and a dozen book chapters. Damian holds a B.Sc. in economics and a M.Sc. in health economics from the University of York, and a Ph.D. in health economics from the London School of Hygiene & Tropical Medicine.