Cass R. Sunstein, Robert Walmsley University Professor at Harvard Law School, was Administrator of the White House Office of Information and Regulatory Affairs in the Obama administration. He was the recipient of the 2018 Holberg Prize, one of the largest annual international research prizes awarded to scholars who have made outstanding contributions to research in the arts and humanities, social science, law, or theology. He is the author of The Cost-Benefit Revolution, How Change Happens (both published by the MIT Press), Nudge: Improving Decisions about Health, Wealth, and Happiness (with Richard H. Thaler), and other books.