Mummolo, Jonathan

6 entries found for Mummolo, Jonathan

“We also find substantial differences in the behavior of female officers—both relative to male officers generally and within racial and ethnic groups— with the most substantial differences pertaining to use of force. The vast majority of gendered reductions stem from a reduced focus on arresting and using force against Black civilians."

“Because there are inevitably unobserved factors that jointly influence the decisions to stop and use force, analyzing only stops introduces selection bias. Therefore, for the conclusions in Fryer (2019) to hold, there must be no racial bias in the decision to detain civilians — in other words, to deem these estimates credible, analysts must assume away racial bias in a study of racial bias."

A PNAS paper finding no racial bias confuses (i) probability of black person being shot by police with (ii) probability of shooting victim being black. “Johnson et al.’s analysis cannot recover these shooting rates because all observations in the data involve shootings."

(cont) “Replicating and extending … Fryer (2019), … the consequences of ignoring the selective process that generates police data are severe, leading analysts to dramatically underestimate or conceal entirely the differential police violence faced by civilians of color."

For those who don’t want to read the 136 papers above, @dean_c_knox, @conjugateprior, @jonmummolo

“Militarized police units are more often deployed in areas with high concentrations of African Americans, even after adjusting for local crime rates and other community traits. But I find no firm evidence that SWAT teams lower an agency’s violent crime rate."