Justin is a Senior Fellow at the Center for Global Development. Prior to joining CGD, he spent two years as an adviser to Tanzania's national statistics office and worked as a research officer at Oxford University's Centre for the Study of African Economies. He has also worked on a project with the Kenyan Ministry of Education to bring rigorous impact evaluation into the Ministry’s policymaking process by scaling up proven small-scale reforms. His research focuses on a wide range of topics, including education, poverty reduction, legal reform, and democratic governance. Justin holds a Ph.D. in Economics from Oxford University.