About the Authors

David Greenberg is Professor Emeritus of Economics at the University of Maryland, Baltimore County (UMBC). His research focuses on the evaluation of government programs targeted at the low-income population, especially in public assistance, employment, and training. Before coming to UMBC in 1982, he worked as a senior economist in several private and public research and policymaking institutions. Since 1989 he has been a visiting professor at the University of Wisconsin-Madison, the Budapest University of Economic Science, and the Centre for Research in Social Policy at Loughborough University in the United Kingdom. In 2002 he worked with others on the design of a large-scale British social experiment at the Prime Minister's Strategy Unit, and he is presently responsible for cost-benefit analyses of three United Kingdom labor market programs. With others, he is currently conducting meta-analyses of random-assignment evaluations of United States voluntary training and mandatory welfare-to-work programs. David Greenberg has published widely on social experimentation, cost-benefit analysis, and employment and training program, including a recent review of government-funded programs for the disadvantaged in the Journal of Economic Literature. His meta-analyses of training programs have appeared in Industrial and Labor Relations Review, Journal of Human Resources, Evaluation Review, Evaluation, and Fiscal Studies. He is the coauthor of Social Experimentation and Public Policymaking (Urban Institute Press, 2003), and is currently working with his coauthors on the third edition of his widely used textbook on cost-benefit analysis (Prentice Hall).

Mark Shroder is an economist with the Office of Policy Development and Research at the U.S. Department of Housing and Urban Development. His publications in the Review of Economics and Statistics, the National Tax Journal, and Economic Design test and extend the theory of public assistance provision in a federal system of government. His articles in Cityscape, the Journal of Housing Economics, the Journal of Housing Research, and the Journal of Urban Economics explore the nature and effects of housing assistance in the United States, while his work on landlords in Urban Studies examines the supply side of the rental market. At HUD he has contributed to the design and evaluation of the Moving to Opportunity for Fair Housing and Welfare to Work Housing Voucher experiments and other major research programs.

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