In most societies, a small number of people commit the most serious violence. Short-term studies have shown that … violence, especially when policymakers are searching for alternatives to aggressive policing and incarceration …

Gun violence is the most pressing public safety problem in American cities. We report results from a randomized … referral methods identified men with strikingly high scope for gun violence reduction: for every 100 people in the control … in an index combining three measures of serious violence, the study's primary outcome. But one component, shooting and …

. While prior evidence suggests that winning a school lottery decreases adult criminality, there is little evidence for how … criminality but show that after accounting for the negative impact on the students who forego the lottery, lotteries increase …