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Inflammatory Political Campaigns and Racial Bias in Policing

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  • Grosjean, Pauline
  • Masera, Federico
  • Yousaf, Hasin

Abstract

Can political rallies affect the behavior of law enforcement officers towards racial minorities? Using data from 35 million traffic stops, we show that the probability that a stopped driver is Black increases by 5.74% after a Trump rally during his 2015-2016 campaign. The effect is immediate, specific to Black drivers, lasts for up to 60 days after the rally, and is not justified by changes in driver behavior. The effects are significantly larger among police officers who were initially more stringent towards Black compared to White drivers, in areas that score higher on present-day measures of racial resentment, those that experienced more racial violence during the Jim Crow era, and in former slave-holding counties. Mentions of racial issues in Trump speeches, whether explicit or implicit, exacerbate the effect of a Trump rally among officers who were initially more stringent towards Black drivers.

Suggested Citation

  • Grosjean, Pauline & Masera, Federico & Yousaf, Hasin, 2021. "Inflammatory Political Campaigns and Racial Bias in Policing," CEPR Discussion Papers 15691, Centre for Economic Policy Research.
  • Handle: RePEc:cpr:ceprdp:15691
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    1. Clément de Chaisemartin & Xavier D'Haultfœuille, 2020. "Two-Way Fixed Effects Estimators with Heterogeneous Treatment Effects," American Economic Review, American Economic Association, vol. 110(9), pages 2964-2996, September.
    2. David H. Autor & David Dorn & Gordon H. Hanson, 2013. "The China Syndrome: Local Labor Market Effects of Import Competition in the United States," American Economic Review, American Economic Association, vol. 103(6), pages 2121-2168, October.
    3. Valentino, Nicholas A. & Hutchings, Vincent L. & White, Ismail K., 2002. "Cues that Matter: How Political Ads Prime Racial Attitudes During Campaigns," American Political Science Review, Cambridge University Press, vol. 96(1), pages 75-90, March.
    4. Steven N. Durlauf, 2005. "Racial Profiling as a Public Policy Question: Efficiency, Equity, and Ambiguity," American Economic Review, American Economic Association, vol. 95(2), pages 132-136, May.
    5. Benjamin Feigenberg & Conrad Miller, 2022. "Would Eliminating Racial Disparities in Motor Vehicle Searches have Efficiency Costs?," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 137(1), pages 49-113.
    6. James M. Snyder Jr. & Hasin Yousaf, 2020. "Making Rallies Great Again: The Effects of Presidential Campaign Rallies on Voter Behavior, 2008-2016," NBER Working Papers 28043, National Bureau of Economic Research, Inc.
    7. Desmond Ang & Panka Bencsik & Jesse Bruhn & Ellora Derenoncourt, 2021. "Police violence reduces civilian cooperation and engagement with law enforcement," Working Papers 2021-16, Princeton University. Economics Department..
    8. Hopkins, Daniel J., 2010. "Politicized Places: Explaining Where and When Immigrants Provoke Local Opposition," American Political Science Review, Cambridge University Press, vol. 104(1), pages 40-60, February.
    9. Shamena Anwar & Hanming Fang, 2015. "Testing for Racial Prejudice in the Parole Board Release Process: Theory and Evidence," The Journal of Legal Studies, University of Chicago Press, vol. 44(1), pages 1-37.
    10. Thompson, Daniel M., 2020. "How Partisan Is Local Law Enforcement? Evidence from Sheriff Cooperation with Immigration Authorities," American Political Science Review, Cambridge University Press, vol. 114(1), pages 222-236, February.
    11. Sun, Liyang & Abraham, Sarah, 2021. "Estimating dynamic treatment effects in event studies with heterogeneous treatment effects," Journal of Econometrics, Elsevier, vol. 225(2), pages 175-199.
    12. Roland G. Fryer Jr., 2019. "An Empirical Analysis of Racial Differences in Police Use of Force," Journal of Political Economy, University of Chicago Press, vol. 127(3), pages 1210-1261.
    13. Brendon McConnell & Imran Rasul, 2021. "Contagious Animosity in the Field: Evidence from the Federal Criminal Justice System," Journal of Labor Economics, University of Chicago Press, vol. 39(3), pages 739-785.
    14. William C. Horrace & Shawn M. Rohlin, 2016. "How Dark Is Dark? Bright Lights, Big City, Racial Profiling," The Review of Economics and Statistics, MIT Press, vol. 98(2), pages 226-232, May.
    15. Bracco, Emanuele & De Paola, Maria & Green, Colin & Scoppa, Vincenzo, 2022. "The spillover of anti-immigration politics to the schoolyard," Labour Economics, Elsevier, vol. 75(C).
    16. Shamena Anwar & Hanming Fang, 2006. "An Alternative Test of Racial Prejudice in Motor Vehicle Searches: Theory and Evidence," American Economic Review, American Economic Association, vol. 96(1), pages 127-151, March.
    17. Grogger, Jeffrey & Ridgeway, Greg, 2006. "Testing for Racial Profiling in Traffic Stops From Behind a Veil of Darkness," Journal of the American Statistical Association, American Statistical Association, vol. 101, pages 878-887, September.
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    Keywords

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    JEL classification:

    • D72 - Microeconomics - - Analysis of Collective Decision-Making - - - Political Processes: Rent-seeking, Lobbying, Elections, Legislatures, and Voting Behavior
    • J15 - Labor and Demographic Economics - - Demographic Economics - - - Economics of Minorities, Races, Indigenous Peoples, and Immigrants; Non-labor Discrimination
    • K42 - Law and Economics - - Legal Procedure, the Legal System, and Illegal Behavior - - - Illegal Behavior and the Enforcement of Law

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