2011 report from Harvard Kennedy School on trends in income and population data from the 2010 United States Census
2011 study by the Migration Policy Institute on the state and local enforcement of the federal 287(g) section of the U.S. Immigration and Nationality Act.
2010 metastudy by researchers from the University of Queensland on the findings from 35 different studies of speed cameras.
2010 study from the Transit Cooperative Research Program on recent streetcar systems and their impact on development and land-use patterns.
2010 study from the Centers for Disease Control and Prevention and others on HIV/AIDS trends and ways to improve prevention and treatment programs.
2010 study by Nature Conservancy Center for Science and Public Policy on depletion across 18 Arizona watersheds and possible mitigation strategies.
2009 study commissioned by the New York City Department of Transportation analyzing trends and causes of pedestrian-related car crashes.
2010 report by the American Public Health Association examining the external costs that automotive-transportation systems impose.
2008 Barry Law School paper looking at the relationship between stadiums and local economic activity and strategies for responding to teams' demands..
2010 RAND Corporation paper on the estimates of the cost of crime, the effectiveness of police force in combating it, and potential benefits of investments in enforcement.