2011 Congressional Budget Office report analyzes IRS and Census Bureau data to track changes in income across classes of earners.

2011 report by the Congressional Research Service on how taxable income is determined and how a surcharge on millionaires would affect job-creation and savings rates

2011 study in the journal Demography examining the higher education completion rates for black men and women between 1940 and 2000.

2011 fact sheet published by Congress’s Joint Economic Committee on the recession's impact at the state level.

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 Census Bureau report updating figures on American households through 2010, including income, poverty and health.

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 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.