William Jack is a Principal Investigator on Mobile Money Project at CERP. William is vice-provost of research and a professor of economics at Georgetown University. He is also director of gui2de, the Georgetown University Initiative on Innovation, Development and Evaluation, which conducts empirical field-based research to assess the impact and effectiveness of development interventions. His research is within the fields of applied economic theory, health economics, public economics, and development economics. Among his areas of interest are issues related to political economy, governance, global health, and development. Billy holds a BSc in mathematics and physics from the University of Western Australia, and an MPhil and DPhil in economics from Oxford University, where he was a Rhodes Scholar.