Howard L. Rosenthal is a professor of politics at New York University. He is the author of many journal articles and coauthor, with Alberto Alesina of Partisan Politics, Divided Government, and the Economy, and coauthor with Keith T. Poole of Ideology and Congress (available from Transaction). David J. Rothman is Bernard Schoenberg Professor of Social Medicine at Columbia University's College of Social Medicine. He is the author of The Willowbrook Wars, The Discovery of the Asylum, Conscience and Convenience, and Strangers at the Bedside, all available from Transaction.