Richard Lyndell Stroup (died November 18, 2021) was a free-market environmentalist and emeritus professor of economics at both North Carolina State University and Montana State University. He was co-founder of the Property and Environment Research Center (PERC) and a senior fellow. He was also a research fellow at the Independent Institute, adjunct scholar of the Cato Institute, and a member of the Mont Pèlerin Society. At Montana State University, he served as head of the Department of Agricultural Economics & Economics from 2003 to 2006. Stroup was director of the Office of Policy Analysis in the U.S. Department of the Interior from 1982 to 1984. He was coauthor with James Gwartney and others of Economics: Public and Private Choice, an economics principles textbook now in its 17th edition. This textbook introduced public choice economics to a broad student audience. Public choice is the application of economic principles to governmental decision-making. Among other writing, he contributed to Re-Thinking Green, edited Cutting Green Tape and was the author of Eco-Nomics: What Everyone Should Know about Economics and the Environment, which received the 2004 Sir Anthony Fisher Memorial Award. He was a coauthor of Common Sense Economics: What Everyone Should Know about Wealth and Prosperity. Stroup contributed to the development of free market environmentalism and its academic forerunner, the New Resource Economics. He started with an article jointly written with John Baden, "Externality, Property Rights, and Management of National Forests" in the October 1973 issue of the Journal of Law and Economics. The article criticized the U. S. Forest Service's management of national forests and explored the possibility of private ownership of forests (including ownership by environmental groups). Stroup received a Ph.D. in economics from the University of Washington, where he also received his bachelor's and master's degrees. He was married to Jane Shaw Stroup (Jane S. Shaw), chairperson of the James G. Martin Center for Academic Renewal (previously the John W. Pope Center for Higher Education Policy). Publications Gwartney, James D., Richard L. Stroup, Russell S. Sobel, and David A. McPherson. Economics: Private and Public Choice, 17th ed. Boston, MA: Cengage, 2022. Stroup, Richard L. Eco-Nomics: What Everyone Should Know About Economics and the Environment. Washington, DC: Cato Institute, 2003 and 2016. Received the Sir Antony Fisher International Memorial Award in 2004. Gwartney, James D., Richard L. Stroup, Dwight R. Lee, Tawni H. Ferrarini, and Joseph P. Calhoun, Common Sense Economics: What