She has written extensively on the impact public policies have on the well-being of children and families. Her most recent book, Too Many Children Left Behind: The U.S. Achievement Gap in Comparative Perspective (Russell Sage Foundation, 2015), assesses how social mobility varies in the United States compared with Australia, Canada, and the United Kingdom. She is the author of five other books, including most recently Britain’s War on Poverty (Russell Sage Foundation, 2010), Steady Gains and Stalled Progress: Inequality and the Black-White Test Score Gap (Russell Sage Foundation, 2008), and What Children Need (Harvard University Press, 2006). Waldfogel has served as president of the Association for Public Policy Analysis and Management and is a corresponding fellow of the British Academy and a fellow at the American Academy of Political and Social Science.