Lance Freeman is a Professor in the Urban Planning Program at Columbia University in New York City. His research focuses on affordable housing, gentrification, ethnic and racial stratification in housing markets, and the relationship between the built environment and well-being. Professor Freeman teaches courses on community development, housing policy and research methods. He has also taught in the School of Urban Affairs and Public Policy at the University of Delaware. Prior to this, Dr. Freeman worked as a researcher at Mathematica Policy Research, a leading social policy research firm in Washington D.C. Dr. Freeman holds a Masters degree and a Ph.D. in City and Regional Planning from the University of North Carolina at Chapel Hill.