to increase crime. The altered behavior of permit holders, career criminals, and the police combine to generate 29 and 32 … percent increases in firearm violent crime and firearm robbery respectively. The increasing firearm violence is facilitated by … a massive 35 percent increase in gun theft (p=0.06), with further crime stimulus flowing from diminished police …

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 …

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 …

Urban crime rates in the United States fell markedly during the 1990s and remain at historically low levels. The … statistical evidence presented here indicates that that decline, like the crime surge that preceded it, has been largely … uncorrelated with changes in socioeconomic conditions across cities. The ups and downs of crime have a considerable effect on …