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Jonathan Mummolo
@jonmummolo
Political scientist @Princeton researching policing, American politics, discrimination, stats. Former reporter @washingtonpost. jonathanmummolo.com
Princeton, NJ
Joined February 2009
Posts
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    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.
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    court transcripts of lawyers questioning experts about statistical concepts is a highly underrated genre
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    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.
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    Steps to locating typos in a manuscript. Step 1: Click “Submit.”
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    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
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    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)
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    @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
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    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
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    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.
    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. 😡
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    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
    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.
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    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.
    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.
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    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…
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    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.