Ingrid Gould Ellen is a visiting professor at MIT. She is on leave from NYU, where she is the Paulette Goddard Professor of Urban Policy and Planning at NYU Wagner and Faculty Director of the NYU Furman Center for Real Estate and Urban Policy. She joined the NYU Wagner faculty in the fall of 1997 and teaches courses in microeconomics, urban economics, and urban policy. Professor Ellen's research interests center on housing, neighborhoods, and urban policy. She is author of Sharing America's Neighborhoods: The Prospects for Stable Racial Integration (Harvard University Press, 2000) and has written numerous journal articles and book chapters related to housing policy, community development, and school and neighborhood segregation. Before coming to NYU, Professor Ellen held visiting positions at the Urban Institute and the Brookings Institution. She attended Harvard University, where she received a bachelor's degree in applied mathematics, an M.P.P., and a Ph.D. in public policy.