In this paper we study the causal impact of police on crime by looking at what happened to crime before and after the … percent in the six weeks following the July 7 bombings. During this time crime fell significantly in central relative to outer … London. Study of the timing of the crime reductions and their magnitude, the types of crime which were more likely to be …

In this paper we study the causal impact of police on crime by looking at what happened to crime before and after the … percent in the six weeks following the July 7 bombings. During this time crime fell significantly in central relative to outer … London. Study of the timing of the crime reductions and their magnitude, the types of crime which were more likely to be …

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 …