Contributor(s): Professor Ed Glaeser | Ed Glaeser is the Fred and Eleanor Glimp Professor of Economics at Harvard, where he also serves as director of the Taubman Center for State and Local Government and the Rappaport Institute for Greater Boston. He studies the economics of cities, and has written on a range of urban issues, including the growth of cities, segregation, crime, and housing markets. He has been particularly interested in the role that geographic proximity can play in creating knowledge and innovation. His 2011 book, Triumph of the City: How Our Greatest Invention Makes Us Richer, Smarter, Greener, Healthier, and Happier was shortlisted for the Financial Times/Goldman Sachs Business Book of the year. He received his Ph.D. from the University of Chicago in 1992 and has been on the faculty at Harvard since then.