Cass R. Sunstein is the Robert Walmsley University Professor at Harvard, where he is founder and director of the Program on Behavioral Economics and Public Policy. He is the most cited law professor in the United States and probably the world. He has served as Administrator of the White House Office of Information and Regulatory Affairs and as a member of the President’s Review Group on Intelligence and Communications Technologies. He is the winner of the 2018 Holberg Prize. His many books include the bestseller Nudge: Improving Decisions about Health, Wealth, and Happiness (with Richard H. Thaler), Simpler: The Future of Government, and Republic.com. A frequent adviser to governments all over the world and a columnist for Bloomberg View, he is married to the United States Ambassador to the United Nations, Samantha Power.