2011 report by the Pew Research Center compared data from the Survey of Income Program and Participation (SIPP) in 2005 and 2009.

2011 report by the World Bank on how three of the fastest-growing economies in the developing world are approaching poverty reduction.

2011 report by the University of Minnesota and University of Missouri on long-term outcomes for participants in early child-parent education programs.

2010 study from Duke University on links between poverty, government assistance and health problems in the United States.

2011 study by RAND Corporation on the potential of educational programs in minimizing summer learning losses and their associated costs.

2011 study in American Journal of Epidemiology on how depression rates are affected by types and qualities of city neighborhoods.

2010 study by USDA's Center for Nutrition Policy and Promotion on the costs of providing for child-rearing needs, based on a survey of more than 15,000 households.

2011 study in the Journal of Marriage and Family on educational results for children in nontraditional families and related causes.

2011 study by the Brookings Institution on how well U.S. public-transportation networks line up with the needs of workers and commuters.

2010 study by Perspectives on Politics on Internet usage and patterns of participatory inequality in American politics.