How Large Are the Gains from Economic Integration? Theory and Evidence from U.S. Agriculture, 1880-1997
---- Acknowledgments ----
We thank numerous colleagues, discussants, and seminar participants for helpful suggestions. Moya Chin, Yangzhou Hu, Meredith McPhail, Cory Smith, and Su Wang provided superb research assistance. Research support from the National Science Foundation under Grant SES-1227635 is gratefully acknowledged. The views expressed herein are those of the authors and do not necessarily reflect the views of the National Bureau of Economic Research.