2006 Princeton University study on the relationship between growing income inequality and increasing political divisions in the United States.
2010 report by the Pew Hispanic Center on the characteristics of unauthorized immigrants' families, parenting status and their children.
2010 University of California, Los Angeles, study published in Transport Policy on the relationship between bicycle use and riders' immigrant status.
2010 survey by the Pew Hispanic Center on the relative attitudes of foreign- and U.S.-born Hispanics toward the 2010 Census.
2007 Tomas Rivera Policy Institute paper examining the sources of tension between African-Americans, Latinos and others in South L.A. June, 2007
2008 study by the International Monetary Fund quantifying if and how different groups influence immigration policy.
2008 study for the National Bureau of Economic Research on the effect of immigration on labor market outcomes for native elderly workers.
2008 Harvard, Duke and University of California study on the contributions of highly skilled and educated immigrants to the United States economy.