Daniel M. Hausman is Herbert A. Simon Professor of Philosophy at the University of Wisconsin, Madison. He is the author or editor of seven books, including Causal Asymmetries (1998), Essays on Philosophy and Economic Methodology (1992), The Separate and Inexact Science of Economics (1992), both editions of The Philosophy of Economics: An Anthology (1984, 1994), and the first edition of Economic Analysis and Moral Philosophy (Cambridge Surveys in Economic Literature, 1996, with Michael McPherson), all published by Cambridge University Press. Professor Hausman has worked on issues concerning ethics and economics, foundational questions concerning the nature of rationality, economic methodology, and causation. He is currently investigating questions concerning the relations between health, welfare, and preferences.