John August List (born September 25, 1968) is an American economist known for establishing field experiments as a tool in empirical economic analysis. He works at the University of Chicago, where he serves as Kenneth C. Griffin Distinguished Service Professor; from 2012 until 2018, he served as Chairman of the Department of Economics. Since 2016, he has served as Visiting Robert F. Hartsook Chair in Fundraising at Indiana University Lilly Family School of Philanthropy. List is noted for his pioneering contributions to field experiments in economics, with Nobel prize winning economist George Akerlof and noted law professor Cass Sunstein writing that "List has done more than anyone else to advance the methods and practice of field experiments." Nobel prize winning economist Gary Becker quipped that "John List's work in field experiments is revolutionary." As detailed in his popular science book, The Why Axis (co-authored with Uri Gneezy), List uses field experiments to offer new insights in various areas of economics research, such as education, private provision of public goods, discrimination, social preferences, prospect theory, environmental economics, marketplace effects on corporate and government policy decisions, gender and inclusion, corporate social responsibility and auctions. The book became an international best-seller and represented List's field experiments from the early 1990s until 2010. List published a second popular book, The Voltage Effect, in February, 2022, that has become a runaway best seller, making the Wall Street Journal, New York Times, USA Today, Publishers Weekly, Porchlight, Washington Post, and LA Times best seller lists. The book is based on a collection of academic articles written by List on scaling. With a suite of coauthors, List has produced both theoretical and empirical insights concerning the "science of using science." In The Voltage Effect, List argues that scaling, at its roots, is an Anna Karenina problem, overturning the conventional wisdom that the problem is a "silver bullet" or "best shot" problem. This leads List to present a thesis that "Every scalable idea is the same, each unscalable idea is unscalable in its own way." List revealed his work at Colby College in 2021. List received his bachelor's degree from the University of Wisconsin–Stevens Point, and his Ph.D. from the University of Wyoming in 1996. He had his first teaching position at the University of Central Florida, and he then moved to the University of Arizona and the University of Maryland, College Park, where he still holds an