Professor Gustav Ranis, Frank Altschul Professor Emeritus of International Economics at Yale, and former Director of the MacMillan Center from 1996 to 2004, has more than 20 books and 300 articles on theoretical and policy-related issues of economic and human development to his credit. He served as Assistant Administrator for Policy and Planning in AID/Department of State during the Johnson administration. Professor Ranis talks about his research on the priority of human development.