Working Papers

  1. The Other Great Migration: Southern Whites and the New Right (with Samuel Bazzi, Martin Fiszbein, Thomas Pearson, and Patrick Testa) [NBER working paper no. 29506 here.]
  2. Discrimination, Migration, and Economic Outcomes: Evidence from World War I (with Price Fishback) [NBER working paper no. 26936 here. Cato policy brief here.], revise & resubmit at the Review of Economics and Statistics
  3. Fatherless: The Long-Term Effects of Losing a Father in the U.S. Civil War (with Yannick Dupraz)
  4. Wars, Taxation and Representation: Evidence from Five Centuries of German History (with Sascha O. Becker, Eric Melander, and Luigi Pascali) [CEPR working paper no. 15601 here.]
  5. Churches as Social Insurance: Oil Risk and Religion in the U.S. South (with Patrick Testa) [Version June 2021. CAGE Warwick working paper no. 513 here.]
  6. New Area- and Population-based Geographic Crosswalks for U.S. Counties and Congressional Districts, 1790-2020 (with Patrick Testa and Liyang Zhou) [The crosswalks, teaching material, and replication files can be downloaded here.]

Work in Progress

  1. Migration and the Geography of Racism in the United States (with Samuel Bazzi, Martin Fiszbein, Thomas Pearson, and Patrick Testa)
  2. Using Digitized Newspapers to Refine Historical Measures: The Case of the Boll Weevil (with Randall Walsh and Joung Yeob Ha)


  1. World War II and Black Economic Progress, Journal of Labor Economics, forthcoming
  2. Causal mediation analysis in instrumental-variables regressions, 2020, Stata Journal, Vol. 20(3), pp. 613-626 (with Christian Dippel and Stephan Heblich) [For data and code type “findit ivmediate” in Stata.]
  3. Consequences of Forced Migration: A Survey of Recent Findings, 2019, Labour Economics, Vol. 59, pp. 1-16 (with Sascha O. Becker) [Supplementary material available here.]
  4. Voluntary Programs to Encourage Diffusion: The Case of the Combined Heat-and-Power Partnership, 2014, The Energy Journal, Vol. 35(1), pp. 161-173 (with Ian Lange)