2009 RAND Corporation study based on data from more than 600 charter schools.
2008 meta-study by the Environmental Defense Fund of the economic cost of cap-and-trade legislation to combat climate change.
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.
2009 report by the Union of Concerned Scientists analyzing more than a decade of peer-reviewed research on genetically modified crops
In response to concerns about climate change, fossil fuels, and nuclear power, a 2009 McKinsey & Company study looks at the potential benefits of conservation.
2005 Imperial College London review of the available scholarship on the impact of red-light cameras on automotive crashes.
2008 Brookings Institution study on options for moving disadvantaged individuals to the banking system.
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.