Christopher Sandy Jencks is the Malcolm Wiener Professor of Social Policy. He has taught at Harvard, Northwestern, the University of Chicago, and the University of California, Santa Barbara. Earlier, he was a Fellow of the Institute for Policy Studies in Washington, DC (1963 to 1967) and an editor of theNew Republic (1961 to 1963). He is currently a member of the Editorial Board of the American Prospect. His recent research deals with changes in family structure over the past generation, the costs and benefits of economic inequality, the extent to which economic advantages are inherited, and the effects of welfare reform. His books include The Academic Revolution (with David Riesman); Inequality: Who Gets Ahead?; The Urban Underclass (with Paul Peterson); Rethinking Social Policy; The Homeless; and The Black White Test Score Gap (with Meredith Phillips).