for Research on Poverty at the University of Wisconsin–Madison and the U.S. Department of Health, Education, and Welfare. His research has dealt with the impact of tax and transfer programs on the U.S. economy and the distribution of income. A particular research interest is child support policy; he has written academic papers and consulted with numerous state governments on the development of their child support guidelines and served as a member of the Washington State Commission on the Review of Child Support Guidelines. In 2004, he was named a national associate of the National Research Council for outstanding contributions to its work, including service on the panel that produced the 1995 report, Measuring Poverty: A New Approach, and the planning group that organized the workshop described in the 2005 report, Experimental Poverty Measures: Summary of a Workshop. He has a Ph.D. in economics from the University of Wisconsin–Madison.

John L. Czajka is a senior fellow at Mathematica Policy Research in Washington, DC. He joined Mathematica in 1978 after a year as lecturer in sociology at the University of California, Berkeley. His work has focused on statistical and policy applications of program administrative data and the evaluation of estimates obtained from survey data. He has directed many studies of health insurance coverage, including analyses of the dynamics of coverage over time and the impact of the Children’s Health Insurance Program on trends in children’s coverage. Much of his research has been conducted for federal agencies, including the Statistics of Income Division of the Internal Revenue Service; the Office of the Assistant Secretary for Planning and Evaluation and the Centers for Medicare & Medicaid Services in the U.S. Department of Health and Human Services; and the Social Security Administration. He is a fellow of the American Statistical Association and a past president of the Washington Statistical Society. He has served on many National Research Council panels, including the panel that produced the 2009 report, Reengineering the Survey of Income and Program Participation, and the panel that produced the 2001 report, Evaluating Welfare Reform in an Era of Transition. He has a B.A. in government from Harvard University and a Ph.D. in sociology from the University of Michigan.

Edwin C. Hustead was senior vice president in charge of the Hay Group actuarial practice Arlington, Virginia, and all Hay Group governmental actuarial and benefits consulting. From 1980 until his retirement in 2007, he was responsible for analyzing and reporting on the financial condition of many governmental employee retirement plans. Prior to working at the Hay Group, he was the chief actuary at the U.S. Office of Personnel Management with responsibility for assuring the actuarial soundness of the largest employee benefit system in the United States. He directed many large-scale

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