can Sociological Review, he has testified and submitted expert reports in over 40 trials throughout the country dealing mostly with labor relations. He is currently doing research on the use of statistical evidence in class action employment discrimination litigation. He has an M.A. in economics and a Ph.D. in sociology from the University of Wisconsin.

CONSTANCE F. CITRO (Study Director) is director of the Committee on National Statistics. She is a former vice president and deputy director of Mathematica Policy Research, Inc., and was an American Statistical Association/National Science Foundation research fellow at the U.S. Census Bureau. For the committee, she has served as study director for numerous projects, including the Panel to Review the 2000 Census, the Panel on Estimates of Poverty for Small Geographic Areas, the Panel on Poverty and Family Assistance, the Panel to Evaluate the Survey of Income and Program Participation, the Panel to Evaluate Microsimulation Models for Social Welfare Programs, and the Panel on Decennial Census Methodology. Her research has focused on the quality and accessibility of large, complex microdata files, as well as analysis related to income and poverty measurement. She is a fellow of the American Statistical Association. She has a B.A. from the University of Rochester and M.A. and Ph.D. degrees in political science from Yale University.

JONATHAN S. LEONARD is the Quist professor of business ethics in the Haas School of Business at the University of California, Berkeley, as well as the current chair of the Haas Economic Analysis and Policy Group. He previously served on the President’s Council of Economic Advisers and as a research associate at the National Bureau of Economic Research. His research interests include employee incentives, affirmative action, job creation, and workplace regulation, and he has published papers on these topics in numerous journals, including Economic Policy and the Journal of Economic Perspectives. He has M.A. and Ph.D. degrees in economics from Harvard University.

JOHN E. ROLPH is a professor in the Marshall School of Business at the University of Southern California and also holds appointments in the Department of Mathematics and the Law School. Previously he spent 24 years as a statistician at RAND, 12 of them as founding head of RAND’s statistics group. His areas of expertise include empirical Bayes estimation and the application of statistics to public policy and the law. He is an elected member of the International Statistical Institute, a fellow of the American Statistical Association, a fellow of the Institute of Mathematical Statistics, and a national associate of the National Academies. He has served as a member and chair of the National Research Council’s (NRC) Committee



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