Do you select the age 50, 45 or 22 vintage?   

                                          

        

Matthew E. Kahn is a Professor of Economics at USC.    He is a research associate at the National Bureau of Economic Research and a research fellow at IZA.  He also serves as a Non-Resident Scholar at the NYU Stern School of Business at the Urbanization Project and as a Non-Resident Scholar at the University of Pennsylvania Institute for Urban Research.  He has taught at Columbia, the Fletcher School at Tufts University and UCLA.  He has served as a Visiting Professor at Harvard and Stanford and as the Low Tuck Kwong Distinguished Visiting Professor at the National University of Singapore.  He holds a Ph.D. in Economics from the University of Chicago.   He is the author of  Green Cities: Urban Growth and the Environment (Brookings Institution Press 2006) and the co-author (joint with Dora L. Costa) of Heroes and Cowards: The Social Face of War (Princeton University Press 2009). In September 2010, Basic Books published his book titled Climatopolis .  In January 2016, he published an updated e-book titled: Fundamentals of Environmental and Urban Economics.   In May 2016, Princeton University Press published his book Blue Skies over Beijing: Economic Growth and the Environment in China (joint with Siqi Zheng). His research focuses on environmental and urban economics.   He is married to Dora L. Costa.