Forthcoming

• Cost-Benefit Analysis, in Encyclopedia of Philosophy and the Social Sciences (forthcoming)
• Happiness Surveys and Public Policy: What's the Use?, 62 Duke Law Journal (forthcoming 2013)

Works in Progress

• Equity by the Numbers: Measuring Poverty, Inequality, and Injustice (April 2013)
• The Pigou-Dalton Principle and the Structure of Distributive Justice (May 2013)
• The Social Value of Mortality Risk Reduction: VSL vs. the Social Welfare Function Approach (March 1, 2012) (with James K. Hammitt & Nicolas Treich)

Books

• Well-being and Fair Distribution: A Framework for Policy Analysis (Oxford University Press, 2012)
• The Rule of Recognition and the Constitution (Oxford University Press, 2009) (editor with Kenneth Himma)
• New Foundations of Cost-Benefit Analysis (Harvard University Press, 2006) (with Eric A. Posner)
• Cost-Benefit Analysis: Legal, Economic, and Philosophical (University of Chicago Press, 2000) (editor with Eric Posner)

Articles and Essays

• Interpretive Contestation and Legal Correctness, 53 William & Mary Law Review 1115-1136 (2012)
• Book Review, 120 Ethics 831-836 (2010) (reviewing, N. Scott Arnold, Imposing Values: An Essay on Liberalism and Regulation (2009))
• Contingent Valuation Studies and Health Policy, 5 Health Economics, Policy & Law 123-131 (2010)
• Regulatory Theory, in A Companion to Philosophy of Law and Legal Theory 590-606 (Dennis Paterson ed., 2d ed. 2010)
• Bounded Rationality and Legal Scholarship, in Theoretical Foundations of Law and Economics 1379 (Mark D. White ed., 2009)
• Future Generations: A Prioritarian View, 77 George Washington Law Review 1478-1520 (2009)
• Introduction, in The Rule of Recognition and the U.S. Constitution xiii (Matthew D. Adler & Kenneth Einar Himma eds., 2009) (with Kenneth Himma)
• New Foundations of Cost-Benefit Analysis, 3 Regulation & Governance 72-83 (2009) (with Eric A. Posner)
• On (Moral) Philosophy and American Legal Scholarship, in On Philosophy in American Law 114-121 (Jay Mootz ed., 2009)
• Social Facts, Constitutional Interpretation, and the Rule of Recognition, in The Rule of Recognition and the U.S. Constitution 193 (Matthew D. Adler & Kenneth Einar Himma eds., 2009)
• Happiness Research and Cost-Benefit Analysis, 37 Journal of Legal Studies S253-S292 (2008) (with Eric A. Posner) (reprinted in Law and Happiness (Eric Posner & Cass Sunstein eds., University of Chicago Press 2010))
• Introducing a 'Different Lives' Approach to the Valuation of Health and Well-Being (University of Pennsylvania Law School, Institute for Law & Economics, Research Paper No. 08-05, 2008) (with Paul Dolan)
• Risk Equity: A New Proposal, 32 Harvard Environmental Law Review 1-47 (2008)
• Corrective Justice and Liability for Global Warming, 155 University of Pennsylvania Law Review 1859-1867 (2007)
• Cost-Benefit Analysis, in 1 Encyclopedia of Law and Society: American and Global Perspectives 305 (David S. Clark ed., 2007)
• Economic Growth and the Interests of Future (and Past and Present) Generations: A Comment on Tyler Cowen, 74 University of Chicago Law Review 41-49 (2007)
• Policy Analysis for Natural Hazards: Some Cautionary Lessons From Environmental Policy Analysis, 32 Administrative & Regulatory Law News 11-14 (Summer 2007)
• Well-Being, Inequality and Time: The Time-Slice Problem and its Policy Implications (University of Pennsylvania Law School, Institute for Law & Economics, Research Paper No. 07-17, 2007)
• Why De Minimis? (University of Pennsylvania, Institute for Law & Economics, Research Paper No. 07-12, 2007)
• Constitutional Fidelity, the Rule of Recognition, and the Communitarian Turn in Contemporary Positivism, 75 Fordham Law Review 1671-1696 (2006)
• Cost-Benefit Analysis: New Foundations, 42/43 Legislacao: Cadernos de Ciencia de Legislacao 63 (2006) (Proceedings of the Conference on Legal Evaluation, Lisbon, January 2005).
• Equity Analysis and Natural Hazards Policy, in On Risk and Disaster: Lessons from Hurricane Katrina 129 (Ronald Daniels et al. eds., 2006)
• Inequality and Uncertainty: Theory and Legal Applications, 155 University of Pennsylvania Law Review 279-377 (2006) (with Chris William Sanchirico)
• Policy Analysis for Natural Hazards: Some Cautionary Lessons from Environmental Policy Analysis, 56 Duke Law Journal 1-50 (2006)
• Popular Constitutionalism and the Rule of Recognition: Whose Practices Ground U.S. Law?, 100 Northwestern University Law Review 719-806 (2006)
• QALYs and Policy Evaluation: A New Perspective, 6 Yale Journal of Health Policy, Law & Ethics 1-92 (2006)
• Welfare Polls: A Synthesis, 81 New York University Law Review 1875-1970 (2006)
• Against 'Individual Risk': A Sympathetic Critique of Risk Assessment, 153 University of Pennsylvania Law Review 1122-1250 (2005)
• Book Review, 115 Ethics 824-828 (2005) (reviewing Louis Kaplow & Steven Shavell, Fairness versus Welfare (2002))
• Cognitivism, Controversy and Moral Heuristics, 28 Behavioral & Brain Sciences 542-543 (2005)
• Justification, Legitimacy, and Administrative Governance, 2005 Issues in Legal Scholarship 1-15
• Fear Assessment: Cost-Benefit Analysis and the Pricing of Fear and Anxiety, 79 Chicago-Kent Law Review 977-1053 (2004)
• Fear Assessment: Cost-Benefit Analysis and the Pricing of Fear and Anxiety, 29 Administrative & Regulatory Law News 4-7 (Summer 2004)
• Constitutional Existence Conditions and Judicial Review, 89 Virginia Law Review 1105-1202 (2003) (with Michael C. Dorf)
• Does the Constitution Require (Basic or Strengthened) Public Rationality?, in Linking Law and Political Science (Christoph Engel &Adrienne Heritier eds., 2003)
• Introduction to Symposium, Preferences and Rational Choice: New Perspectives and Legal Implications 707-715 (2003) (with Claire Finkelstein & Peter Huang)
• Legal Transitions: Some Welfarist Remarks, 13 Journal of Contemporary Legal Issues 5-28 (2003)
• Risk, Death and Harm: The Normative Foundations of Risk Regulation, 87 Minnesota Law Review 1293-1445 (2003)
• The Puzzle of Ex Ante Efficiency: Does Rational Approvability have Moral Weight?, 151 University of Pennsylvania Law Review 707 (2003)
• Book Review, Notre Dame Philosophical Review (September 3, 2002) (reviewing Rights, Wrongs and Responsibilities (Matthew H. Kramer ed., 2001))
• The Positive Political Theory of Cost-Benefit Analysis: A Comment on Johnston, 150 University of Pennsylvania Law Review 1429-1451 (2002)
• Expression and Appearance: A Comment on Hellman, 60 Maryland Law Review 688-712 (2001)
• Risk, Death and Time: A Comment on Judge Williams' Defense of Cost-Benefit Analysis, 53 Administrative Law Review 271-287 (2001)
• Beyond Efficiency and Procedure: A Welfarist Theory of Regulation, 28 Florida State University Law Review 241-338 (2000)
• Book Review, 20 Philosophy in Review 142-145 (2000) (reviewing Richard A. Posner, The Problematics of Moral and Legal Theory (1999))
• Expressive Theories of Law: A Skeptical Overview, 148 University of Pennsylvania Law Review 1363-1501 (2000)
• Implementing Cost-Benefit Analysis When Preferences Are Distorted, 29 Journal of Legal Studies 1105-1147 (2000) (with Eric A. Posner) (republished in, Cost-Benefit Analysis: Legal, Economic and Philosophical Perspectives (Matthew D. Alder & Eric A. Posner eds., 2001)
• Introduction, to Cost-Benefit Analysis, 29 Journal of Legal Studies 837-842 (2000) (with Eric A. Posner)
• Linguistic Meaning, Nonlinguistic "Expression," and the Multiple Variants of Expressivism: A Reply to Professors Anderson and Pildes, 148 University of Pennsylvania Law Review 1577-1594 (2000)
• Personal Rights and Rule-Dependence: Can the Two Coexist?, 6 Legal Theory 337-389 (2000)
• Rights and Rules: An Overview, 6 Legal Theory 241-251 (2000) (with Michael C. Dorf)
• Rights, Rules and the Structure of Constitutional Adjudication: A Response to Professor Fallon, 113 Harvard Law Review 1371-1420 (2000)
• Book Review, 19 Philosophy in Review 168-171 (1999) (reviewing Incommensurability, Incomparability and Practical Reason (Ruth Chang ed., 1997))
• Rethinking Cost-Benefit Analysis, 109 Yale Law Journal 165-247 (1999) (with Eric A. Posner) (Excerpted in Jurisprudence: Classical and Contemporary (Robert Hayman et al., 2d ed., 2002)
• Can Constitutional Borrowing be Justified? A Comment on Tushnet, 1 University of Pennsylvania Journal of Constitutional Law 350-357 (1998)
• Incommensurability and Cost-Benefit Analysis, 146 University of Pennsylvania Law Review 1371-1418 (1998)
• Law and Incommensurability: Introduction, 146 University of Pennsylvania Law Review 1169-1184 (1998)
• Rights Against Rules: The Moral Structure of American Constitutional Law, 97 Michigan Law Review 1-173 (1998)
• The New Etiquette of Federalism: New York, Printz and Yeskey, 1998 Supreme Court Review 71-143 (with Seth F. Kreimer)
• Judicial Restraint in the Administrative State: Beyond the Countermajoritarian Difficulty, 145 University of Pennsylvania Law Review 759-892 (1997)
• What States Owe Outsiders, 20 Hastings Constitutional Law Quarterly 391-438 (1993)