Macartan Humphreys is assistant professor of political science at Columbia University and publishes on the politics of economic policy making, bargaining theory, and rebel behavior in civil war.
Jeffrey D. Sachs is the Director of The Earth Institute, Quetelet Professor of Sustainable Development, and Professor of Health Policy and Management at Columbia University. He is also Special Advisor to United Nations Secretary-General Ban Ki-moon and President and Co-Founder of Millennium Promise Alliance, a nonprofit organization aimed at ending extreme global poverty.He is author of hundreds of scholarly articles and many books, including The End of Poverty.
Joseph E. Stiglitz is a University Professor at Columbia University and former chief economist and senior vice-president of the World Bank. Among his books is Globalization and Its Discontents, which has been translated into twenty-eight languages. In 2001 he was awarded the Nobel Prize in economics.