2009 National Bureau of Economic Research paper on the relationship between early exposure to violence and later problems such as substance abuse and delinquency.
2008 paper by the Widener University School of Law on approaches for realizing the potential benefits of energy efficiency in the United States.
2007 meta-analysis by Amsterdam University of U.S. and international studies on transit stations' effect on property values.
2009 University of Texas metastudy on the cost, operational characteristics, and land-use impacts of different mass-transit technologies.
2009 meta-analysis by the Institute of Medicine of 11 U.S. and European studies on the health effects of smoking bans.
2009 study by the Harvard Medical School and the Cambridge Health Alliance on the relationship between health insurance and death rates.
2005 Imperial College London review of the available scholarship on the impact of red-light cameras on automotive crashes.
2009 University of Pennsylvania Law School research paper looking at the trade-offs between the two options.
2009 review by the World Bank of methods available for addressing transportation-sector emissions and congestion.
2007 McMaster University survey published in Open Medicine comparing 38 studies that look at outcomes of medical care in the two countries.