From 2000 to 2010, more than 20 states passed laws that make it easier to use lethal force in self-defense. Elements of these laws include removing the duty to retreat in places outside of one's home, adding a presumption of reasonable belief of imminent harm, and removing civil liability for...

Laboratory experiments in psychology find that media violence increases aggression in the short run. We analyze whether media violence affects violent crime in the field. We exploit variation in the violence of blockbuster movies from 1995 to 2004, and study the effect on same-day assaults. We...

This paper examines student exposure to school shootings in the United States since the 1999 shooting at Columbine High School. We analyze shootings that occurred during school hours on a school day and resulted in a death. These shootings are likely to be uniformly reported and have a greater...

COVID-19 has led to an abrupt change in time spent at home, with many cities and states implementing official stay-at-home (SAH), or “lockdown” policies. Using cell phone block-level activity data and administrative 911 and crime data from the city of Chicago, we estimate the effects of the...

Violence is one of the leading social problems in the United States. The development of appropriate public policies to curtail violence is confounded by the relationship between alcohol and violence. In this paper, we estimate the propensity of alcohol control policies to reduce the perpetration...

We investigate how criminal organizations strategically use violence to influence elections in order to get captured politicians elected. The model offers novel testable implications about the use of pre-electoral violence under different types of electoral systems and different degrees of...

This paper uses more complete state panel data (through 2014) and new statistical techniques to estimate the impact on violent crime when states adopt right-to-carry (RTC) concealed handgun laws. Our preferred panel data regression specification, unlike the statistical model of Lott and Mustard...

We study desensitization to crime in a lab experiment by showing footage of criminal acts to a group of subjects, some of whom have been previously victimized. We measure biological markers of stress and behavioral indices of cognitive control before and after treated participants watch a series...

The purpose of this paper is to examine the relationship between the price of alcoholic beverages and the incidence of criminal violence in different countries around the world. The positive association between alcoholic beverage consumption and violence is well documented, as is the negative...

Child maltreatment, which includes both child abuse and child neglect, is a major social problem. This paper focuses on measuring the effects of child maltreatment on crime using data from the National Longitudinal Study of Adolescent Health (Add Health). We focus on crime because it is one of...