Log inSign up
Jonathan Mummolo
1,713 posts
user avatar
Jonathan Mummolo
@jonmummolo
Political scientist @Princeton researching policing, American politics, discrimination, stats. Former reporter @washingtonpost. jonathanmummolo.com
Princeton, NJ
Joined February 2009
1,432
Following
6,602
Followers
  • Pinned
    user avatar
    Jonathan Mummolo
    @jonmummolo
    May 18, 2023
    i find myself writing the same email over and over to grad students who are developing early ideas. and every time i deviate from this approach in my own work my papers go sideways. sharing the latest email in case it is helpful.
    142K
  • user avatar
    Jonathan Mummolo
    @jonmummolo
    Sep 13, 2022
    court transcripts of lawyers questioning experts about statistical concepts is a highly underrated genre
  • user avatar
    Jonathan Mummolo
    @jonmummolo
    Sep 19, 2019
    Today @DrPhilGoff departed from his prepared remarks to the House Judiciary Committee to debunk a recent study which claimed to find no evidence of racial bias in police shootings. Thanks for alerting lawmakers to this important corrective.
    00:00
  • user avatar
    Jonathan Mummolo
    @jonmummolo
    Mar 19, 2019
    Steps to locating typos in a manuscript. Step 1: Click “Submit.”
  • user avatar
    Jonathan Mummolo
    @jonmummolo
    Dec 26, 2019
    Refills cost $179.
    user avatar
    William Hankins
    @wbh_econ
    Dec 25, 2019
    Christmas by Stata.
  • user avatar
    Jonathan Mummolo
    @jonmummolo
    Aug 1, 2019
    New study of fatal police-involved shootings reported “no overall evidence of anti-Black ... disparities.” @dean_c_knox & I submitted a letter to the editor showing study's approach can't support claim. Journal declined to publish. Sharing here so future research can improve. 1/N
  • user avatar
    Jonathan Mummolo
    @jonmummolo
    Feb 28, 2020
    New @The_JOP by @seanjwestwood @SolomonMg @ylelkes shows probabilistic election forecasts like @FiveThirtyEight confuse voters & decrease turnout, mostly among Dems. It’s thorough and innovative experimental behavioral research. A fan thread. (1/n)
  • user avatar
    Jonathan Mummolo
    @jonmummolo
    Jan 21, 2020
    @PNASNews published a study last year claiming no racial bias in police shootings. The study's central claim was mathematically unsupported. @dean_c_knox & I submitted critique to PNAS, which was rejected. We appealed. Today PNAS published our critique.1/n
    pnas.org
    Making inferences about racial disparities in police violence | PNAS
    Making inferences about racial disparities in police violence
  • user avatar
    Jonathan Mummolo
    @jonmummolo
    Feb 18, 2019
    Estimates of racial bias using police data are wrong if police discriminate in who they stop. New paper w/ @dean_c_knox, @conjugateprior: analysis in Fryer (forthcoming) likely masks hundreds of thousands of instances of discriminatory police violence. 1/n goo.gl/yfPM5r
  • user avatar
    Jonathan Mummolo
    @jonmummolo
    Jan 7, 2021
    Policing is a multi-stage process, and bias can occur long before officers ever face civilians. The political decision to have an army ready to face BLM, but only a handful of officers to face the Trump mob, speaks volumes.
    user avatar
    Eric Feigl-Ding
    @DrEricDing
    Jan 7, 2021
    WHOA—The US Capitol siege today started at this exact moment — when the Capitol police were completely caught off guard when rioters stormed the fence and overran them. Where was the backup? Why wasn’t the National Guard pre-stationed there? So angry. 😡
    user avatar
    E
    00:00
    user avatar
    E
  • user avatar
    Jonathan Mummolo
    @jonmummolo
    Oct 1, 2019
    Brett Stephens is crediting "Broken Windows" policing strategies like "Stop, Question and Frisk" (SQF) for the nationwide crime drop that began in the 1990s. Let's take a look at the evidence. 1/n
    user avatar
    PragerU
    @prageru
    Sep 26, 2019
    Bret Stephens, Pulitzer Prize-winning columnist for the New York Times, explains how the NYPD's "broken windows" policy--swiftly and forcefully punishing even petty crimes--can be applied by the United States on a global scale.
    00:00
  • user avatar
    Jonathan Mummolo
    @jonmummolo
    Sep 27, 2023
    I highly recommend working a “normal job” before entering academia, just to appreciate the contrasts. Academia has a lot of problems. But the perks of the job are real.
    user avatar
    Arthur Spirling
    @arthur_spirling
    Sep 27, 2023
    I see we’re at the stage of anti-academia in here that we’re now claiming with a straight face that it offers less time flexibility and intellectual freedom *on average* than non-academic jobs. OK.
    130K
  • user avatar
    Jonathan Mummolo
    @jonmummolo
    Feb 11, 2021
    In a new @ScienceMagazine study, we find Black, Hispanic & female officers engage in less enforcement and violence than white & male officers facing common circumstances. @bocar_a @dean_c_knox @romangrivera1 1/ science.sciencemag.org/cgi/doi/10.112…
  • user avatar
    Jonathan Mummolo
    @jonmummolo
    Apr 6, 2022
    How do police compare demographically & politically to civilians they serve? We investigate w/ data on officers from 97 of the 100 largest US agencies, more than ⅓ of local police. We also test whether Dem and Rep officers behave differently in Chicago. 🧵scholar.princeton.edu/sites/default/…
    "Who are the Police? Descriptive Representation in the Coercive Arm of Government." By Bocar Ba, Jacob Kaplan, Dean Knox, Mayya Komisarchik, Rachel Mariman Jonathan Mummolo, Roman Rivera, and Michelle Torres.

New to X?

Sign up now to get your own personalized timeline!

Create account

By signing up, you agree to the Terms of Service and Privacy Policy, including Cookie Use.

Terms of Service|Privacy Policy|Cookie Policy|Accessibility|Ads info|© 2026 X Corp.
Don't miss what's happening
People on X are the first to know.
Log inSign up