J. H. CULLUM CLARK is Director of the George W. Bush Institute-SMU Economic Growth Initiative, the economic policy arm of the George W. Bush Presidential Center, and Adjunct Professor of Economics at Southern Methodist University. Cullum leads the Bush Institute’s program on domestic economic policy, focusing on creating prosperous, high-opportunity cities, towns, and neighborhoods as a path to improving economic mobility in the United States economy. He is co-author of the 2021 book The Texas Triangle: An Emerging Power in the Global Economy. Cullum’s work has appeared in City Journal, Real Clear Policy, the Dallas Morning News, and numerous other publications and has been featured in the Freakonomics Radio podcast. Cullum previously served as President of Prothro Clark Company, a family investment firm in Dallas; founder and President of Cimarron Global Investors, a Dallas hedge fund firm; Portfolio Manager and Equity Analyst at Warburg Pincus Asset Management and Brown Brothers Harriman & Co; and Research Analyst for the U.S. Senate Select Committee on Intelligence. He serves on the Boards of Uplift Education (the leading charter school network in North Texas), the Eugene McDermott Foundation, the Yale University Art Gallery, the S.W. Wright Foundation, and the Foundation for the Arts, as well as the Investment Committee of SMU and the advisory board of SMU’s John Goodwin Tower Center for Public Policy and International Affairs. Cullum earned a B.A. in History from Yale University, a Master’s Degree in Political Science from Harvard University, and a Ph.D. in Economics from Southern Methodist University. He is married to Nita Prothro Clark, and the couple have three daughters, Lili, Annabel, and Charlotte.
