Cost-Benefits Analysis and the Judicial Role
Jonathan S. Masur
John P. Wilson Professor of Law and David and Celia Hilliard Research Scholar, The University of Chicago Law School
Eric A. Posner
Kirkland & Ellis Distinguished Service Professor and Arthur and Esther Kane Research Chair, The University of Chicago Law School

Thanks to David Driesen, Jerry Ellig, Jake Gersen, Daniel Hemel, Jennifer Nou, Cathy Sharkey, David Strauss, Cass Sunstein, Kip Viscusi, and participants at workshops at The University of Chicago Law School and Syracuse Law School for helpful comments, to the Russell Baker Scholars Fund, the David and Celia Hilliard Fund, and the Wachtell, Lipton, Rosen & Katz Program in Behavioral Law, Finance and Economics for research support, and to Mei Ying Barnes, Hanan Cidor, Kathrine Gutierrez, Christina McClintock, Isabella Nascimento, Holly Newell, and Michael Wheat for excellent research assistance.

Citizens of the State
Maeve Glass
Associate Professor of Law, Columbia Law School

For helpful comments on earlier drafts, many thanks to Tomiko Brown-Nagin, Jessica Bulman-Pozen, Christine Desan, Einer Elhauge, Elizabeth F. Emens, Marie-Amélie George, Noah Glass, Jeffrey Gordon, Annette Gordon-Reed, Jamal Greene, Ariela J. Gross, Hendrik Hartog, Bert I. Huang, Freya Irani, Olatunde C. Johnson, Jeremy Kessler, Ryan Liss, Kenneth W. Mack, Jane Manners, Henry P. Monaghan, Shaun Ossei-Owusu, Christina Duffy Ponsa-Kraus, Vlad Perju, David Pozen, Alex Raskolnikov, Martha A. Sandweiss, Carol Sanger, Matthew A. Shapiro, Emily Stolzenberg, Sarah L. Swan, Sean Wilentz, and Rebecca E. Zietlow, as well as the editors of The University of Chicago Law Review and participants in the Columbia
Law School Associates and Fellows Workshop, the Harvard Legal History Workshop, and the American Society for Legal History.

In the midst of a New England winter long ago, young people of Boston filed into a drafty meeting hall up the road from the harbor.1