We received helpful comments from: Kerwin Charles, William Spriggs, Morris Kleiner, Ed Timmons, Jennifer Doleac, Isaiah Andrews, David Autor, Ainhoa Aparicio, William Darity Jr., Patrick Bayer, Thummim Cho, David Deming, Michael Dinerstein, William Dougan, Steven Durlauf, Susan Dynarski, Robert Fleck, Michael Kofoed, Stefano Giglio, Edward Glaeser, Claudia Goldin, Sarena Goodman, Benjamin Hansen, Arnold Harberger, James Heckman, Nathaniel Hendren, Kirabo Jackson, Damon Jones, Lawrence Katz, Mark Klee, Glenn Loury, Alexandre Mas, Jonathan Meer, Conrad Miller, Richard Murnane, David Neumark, Oyebola Olabisi Okunogbe, Curtis Simon, Todd Sinai, Kent Smetters, Stan Veuger, Shing-Yi Wang, Matthew Weinzierl, Kyle Welch, Brian Jacob, several anonymous referees and many others. We also received helpful comments from the seminar participants at NBER Labor Studies Meeting, Harvard, Stanford (SITE Conference), Columbia, Cornell, Brown, Clemson, West Point Military Academy, Collegio Carlo Alberto, Bowdoin College, Federal Reserve Bank of Chicago, AEA Annual Meeting, Economic Demography Workshop, Southern Economic Association Conference, and the South Carolina Applied Micro Day Conference. We also thank Jennifer Moore, Brian Trainer, Andrew Mannheimer, Benjamin Posmanick, Elijah Neilson, Kenneth Whaley, Majid Hashemi, Mickey Whitzer, Jhacova Williams, Anne-Marie Korte, Morgan Adderley, and Rafael Luna (Scientific Storytelling) for help with the manuscript. All remaining errors are ours. Blair is grateful for generous research funding from the Upjohn Institute Early Career Research Award. The views expressed herein are those of the authors and do not necessarily reflect the views of the National Bureau of Economic Research.