John W. McArthur is the CEO of Millennium Promise, a leading international nonprofit organization solely committed to supporting the achievement of the Millennium Development Goals. In this capacity he oversees the Millennium Villages project, which supports integrated social and business development services for more than 400,000 people in rural communities across 10 countries in Africa. John is also a research associate at the Earth Institute at Columbia University, where he previously served as policy director, and teaches at Columbia's School of International and Public Affairs. Previously, John served as deputy director and manager of the U.N. Millennium Project, shepherding the report "Investing in Development: A Practical Plan to Achieve the Millennium Development Goals."