David H GreenbergDavid H. Greenberg is Professor Emeritus of Economics at the University of Maryland, Baltimore County (UMBC). He is a labor economist and cost-benefit analyst who received his Ph.D. at Massachusetts Institute of Technology. Before coming to UMBC, he orked for the Rand Corporation, SRI International, and the US Department of Health and Human Services. He has taught courses in cost-benefit analysis at the University of Wisconsin-Madison, George Washington University, Budapest University of Economic Science, and the Central European University, Budapest. He is a long time consultant to MDRC, Abt Associates and other research organizations. Read More Read Less