between the racial composition of a city's police force and the racial patterns of arrests and crime. Increases in the number … police officers has a less clear-cut impact on crime rates. It appears that own-race policing may be more effective in … reducing property crime, but no systematic differences are observed for violent crime. These results are consistent either with …

Cities target police patrols and public services to control crime. What are the direct and spillover effects of such …,919 streets to either 8 months of doubled police patrols, greater municipal services, both, or neither. We study how crime … responds to intensifying normal state presence in moderate- to high-crime streets, and what this implies about criminal …

In 2016 the city of Bogotá doubled police patrols and intensified city services on high-crime streets. They did so … based on a policy and criminological consensus that such place-based programs not only decrease crime, but also have … effects and that such crime displaced nearby, especially property crimes. Confidence intervals suggest we can rule out total …

Previous empirical studies have typically uncovered little evidence that police reduce crime. One problem with those … studies is a failure to adequately deal with the simultaneity between police and crime: while police may or may not reduce … crime, there is little doubt that expenditures on police forces are an increasing function of the crime rate. In this study …

contact, and holds officers accountable for crime in their assigned area. The plan warranted a comprehensive training program … reduction in several types of crime attributable to the training program, ranging from around .13 of a standard deviation for … homicides to .18 of a standard deviation for brawls. These impacts are driven by very large effects in high crime areas and very …

Previous empirical studies have typically uncovered little evidence that police reduce crime. One problem with those … studies is a failure to adequately deal with the simultaneity between police and crime: while police may or may not reduce … crime, there is little doubt that expenditures on police forces are an increasing function of the crime rate. In this study …

between the racial composition of a city's police force and the racial patterns of arrests and crime. Increases in the number … police officers has a less clear-cut impact on crime rates. It appears that own-race policing may be more effective in … reducing property crime, but no systematic differences are observed for violent crime. These results are consistent either with …