Michael Callen is a Research Fellow at the John F. Kennedy School of Government at Harvard University and a faculty member at the University of California, San Diego. His recent work uses experiments to identify ways to address accountability and service delivery failures in the public sector. He has published in the American Economic Review, the Journal of Conflict Resolution, and the British Journal of Political Science. He is an Affiliate at the Center for Effective Global Action (CEGA), the Policy Design and Evaluation Lab (PDEL), the Center for Economic Research Pakistan (CERP), and the Bureau for Research and Economic Analysis of Development, and a Principal Investigator on the Building Capacity for the Use of Research Evidence (BCURE): Data and evidence for smart policy design project. His primary interests are political economy, development economics, and experimental economics.