A Spatial Knowledge Economy
---- Acknowledgements ----
We thank Pol Antras, Arnaud Costinot, Jessie Handbury, Walker Hanlon, Sam Kortum, Corinne Low, Ben Marx, Joan Monras, Suresh Naidu, Daniel Sturm, Eric Verhoogen, Reed Walker, David Weinstein, and seminar participants at the CESifo conference on heterogeneous firms in international trade, Columbia applied micro and international trade colloquia, NYU, Princeton IES Summer Workshop, Spatial Economic Research Centre annual conference, and University of Toronto for helpful comments on various drafts. We thank Paul Piveteau for research assistance. We are grateful to Enrico Moretti and Stuart Rosenthal for sharing their housing-price measures with us. Dingel acknowledges financial support from the Program for Economic Research at Columbia University. The views expressed herein are those of the authors and do not necessarily reflect the views of the National Bureau of Economic Research.