We examine class disparities and discrimination in police searches and stops using data on traffic stops conducted by Texas Highway Patrol. Low-income motorists are more likely to be searched for contraband, less likely to be found with contraband when searched, and more likely to be stopped for...

This paper studies the use of mobile crisis response teams--a non-uniformed pair consisting of a mental health worker and a medic--as a component of emergency response to 911 calls. We provide the first evaluation of the longest-running program in the United States, Crisis Assistance Helping Out...

We study racial disparities in police use of force. A pervasive issue in studies of policing is that the available data are selected by the police. As a result, disparities computed in the observed sample may be biased if selection into the data differs by race. We develop a framework and...

This paper develops a model of the geographic distribution of crime in an urban area. When the police protect some neighborhoods (concentrated protection), the city becomes segregated. When the police are evenly deployed across the city (dispersed protection), an integrated city emerges. Unequal...

We argue that the key impediment to accurate measurement of the effect of police on crime is not necessarily simultaneity bias, but bias due to mismeasurement of police. Using a new panel data set on crime in medium to large U.S. cities over 1960- 2010, we obtain measurement error corrected...

We analyze data on NYPD's "stop and frisk program" in an effort to identify racial bias on the part of the police officers making the stops. We find that the officers are not biased against African Americans relative to whites, because the latter are being stopped despite being a "less...

We examine the ill-health retirement of police officers in the forces of England and Wales between 2002-03 and 2009-10. Differences in ill-health retirement rates across forces are statistically related to area-specific stresses of policing and force-specific differences in human resources...

The role of good management practices in organizations has recently been emphasized. Do the same principles also apply in government organizations, even the most bureaucratic and hierarchical of them? And can skilled, motivated managers identify how to improve these practices, or is there a role...

This paper reports estimates for the ex ante tradeoffs for three specific homeland security policies that all address a terrorist attack on commercial aircraft with shoulder mounted missiles. Our analysis focuses on the willingness to pay for anti-missile laser jamming countermeasures mounted on...

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...