Jeffrey P. Ballou is an economist at Mathematica Policy Research, Inc. in Cambridge, Massachusetts. Prior to joining Mathematica, he held faculty positions at Northeastern and Northwestern Universities. Dr Ballou's professional research spans multiple industries, including higher education and health care, areas in which he consults regularly for policy makers and institutional stakeholders. He received his Ph.D. from Northwestern University.Evelyn D. Asch is Research Coordinator at the Institute for Policy Research at Northwestern University. She has also taught research and writing in the humanities and social sciences at Loyola University Chicago, DePaul University, and Shimer College. Dr Asch is the author (with Sharon K. Walsh) of three college texts in the Wadsworth Casebook in Argument series: Just War (2004), Civil Disobedience (2005), and Immigration (2005). She received her Ph.D. from the Committee on the History of Culture of the University of Chicago.