Did the Death of Distance Hurt Detroit and Help New York?
---- Acknowledgements -----
We are grateful to Diego Puga and participants at the NBER Economics of Agglomeration Conference for helpful comments. Glaeser thanks the Taubman Center for State and Local Government and Ponzetto thanks the Institute for Humane Studies for financial assistance. Kristina Tobio and Scott Kominers provided superb research assistance. The views expressed herein are those of the author(s) and do not necessarily reflect the views of the National Bureau of Economic Research.