Matthew D. Adler is Richard A. Horvitz Professor of Law and Professor of Economics, Philosophy and Public Policy at Duke University, and is the founding director of the Duke Center for Law, Economics and Public Policy. He writes at the intersection of law, moral philosophy, and welfare economics. His current research focuses on "prioritarianism"--a refinement to utilitarianism that gives extra weight to the worse off. He is the author of numerous articles and books, including Well-Being and Fair Distribution: Beyond Cost-Benefit Analysis and Measuring Social Welfare: An Introduction. With Marc Fleurbaey, he edited the Oxford Handbook of Well-Being and Public Policy.