About

Ian Ayres is a lawyer and an economist. They are the Oscar M. Ruebhausen Professor & former Deputy Dean at Yale Law School, a Professor at Yale’s School of Management, and a Professor in Yale School of Public Health. (Ayres Resume)

Professor Ayres has been a columnist for Forbes magazine, a commentator on public radio’s Marketplace, and a contributor to the New York Times’ Freakonomics Blog. Their research has been featured on PrimeTime Live, Oprah and Good Morning America and in Time and Vogue magazines.

Ian has published 13 books (including the New York Times best-seller, Super Crunchers) and over 100 articles on a wide range of topics. Ian’s latest book is Retirement Guardrails: How Proactive Fiduciaries Can Improve Plan Outcomes (with Quinn Curtis). 

Ian is a co-founder of stickK.com, a web site that helps you stick to your goals.

In an Illinois post-conviction proceeding, Ayres helped convince a court to vacate their client’s death sentence.

In 2006, Ian was elected to the American Academy of Arts and Sciences. Their book with Greg Klass, Insincere Promises: The Law of Misrepresented Intent, won the 2006 Scribes book award “for the best work of legal scholarship published during the previous year.” Professor Ayres has been ranked as one of the most prolific and most-cited law professors of their generation. See James Lindgren & Daniel Seltzer, The Most Prolific Law Professors and Faculties, 71 CHI.-KENT L. REV. 781 (1996); Fred R. Shapiro, The Most-Cited Legal Scholars, 29 J. LEGAL STUD. 409 (2000). The Chronicle of Higher Education referred to Ayres as “a law-and-economics guru.”

Ian was born and raised in Kansas City, Missouri, received their B.A. (majoring in Russian studies and economics) and J.D. from Yale and their Ph.D in economics from M.I.T. Professor Ayres clerked for the Honorable James K. Logan of the Tenth Circuit Court of Appeals. They have previously taught at Harvard, Illinois, Northwestern, Stanford and Virginia law schools and has been a research fellow of the American Bar Foundation. From 2002 to 2009, Ian was the editor of the Journal of Law, Economics and Organization.

In the spring 2005, they published three books, Straightforward (with Jennifer Gerarda Brown); Optional Law; and Insincere Promises (with Gregory Klass). Ian is also the author of Why Not? (2003) (with Barry Nalebuff); Voting with Dollars (2002) (with Bruce Ackerman) and Pervasive Prejudice? (2001).

Their two most cited law review articles are Fair Driving: Gender and Race Discrimination in Retail Car Negotiations, 104 Harvard Law Review 817 (1991) and Filling Gaps in Incomplete Contracts: An Economic Theory of Default Rules, 99 Yale Law Journal 87 (1989) (with Robert Gertner).

They are the author of several empirical studies: Does Affirmative Action Reduce the Number of Black Lawyers?, 57 Stanford Law Review 1807 (2005) (with Richard Brooks); To Insure Prejudice: Racial Disparities in Taxicab Tipping, 114 Yale Law Journal 1613 (2005) (with Fred Vars and Nasser Zakariya); A Separate Crime of Reckless Sex, 72 University of Chicago Law Review 599 (2005) (with Katharine Baker); Shooting Down the More Guns, Less Crime Hypothesis, 55 Stanford Law Review 1193 (2003) (with John J. Donohue III); Measuring the Positive Externalities from Unobservable Victim Precaution: An Empirical Analysis of Lojack, 113 Quarterly Journal of Economics 43 (1998) (with Steven D. Levitt); Pursuing Deficit Reduction Through Diversity: How Affirmative Action at the FCC Increased Auction Competition, 48 Stanford Law Review 761 (1996) (with Peter Cramton); A Market Test for Race Discrimination in Bail Setting, 46 Stanford Law Review 987 (1994) (with Joel Waldfogel); and Racial Equity in Renal Transplantation: The Disparate Impact of HLA-Based Allocation, 270 Journal of American Medical Association 1352 (1993) (with Robert Gaston, Laura Dooley and Arnold Diethelm).

Excerpts of their publications as well as audio and video clips can be found on the internet at: https://ianayres.yale.edu.