2011 paper in the Harvard Law and Policy Review compares changes in voter turnout between 2002 and 2006.
2011 report by the Brookings Institute's Metropolitan Policy Program on the transit options of U.S. households without private vehicles.
2011 study from the Pew Charitable Trusts on factors that contribute to downward mobility in the United States and how they intersect with race and gender.
2011 report by the U.S. Census Bureau with data on health insurance coverage, income and poverty levels.
2010 study in Economics of Education Review on link between family background, education and achievement.
2011 report by the U.S. Congressional Research Service on outstanding issues for the newly independent African nation.
2010 report by the Department of Health and Human Services on the cognitive development and physical health outcomes of Head Start students.
2011 report by the Pew Research Center compared data from the Survey of Income Program and Participation (SIPP) in 2005 and 2009.
2011 study in Archives of Internal Medicine on links between proximity to certain types of foods and health outcomes.
2011 report by the World Bank on how three of the fastest-growing economies in the developing world are approaching poverty reduction.