Gabriel Roth is a Research Fellow at the Independent Institute and has pioneered scholarly work on market-based roads, parking, and transit. Following a Rees Jeffreys Fellowship at the UK Road Research Laboratory, and studies at the Department of Applied Economics (University of Cambridge), on the economics of car parking, he worked for 20 years in five continents as a transportation economist for the World Bank. He has also authored studies for the governments of New Zealand and Sri Lanka, U.S. Agency for International Development, Inter-American Development Bank, Adam Smith Institute, International Center for Economic Growth, and other organizations, and served for three years as President of The Services Group, a consulting firm specializing in market-oriented approaches to economic development.

Mary E. Peters is the former U.S. Secretary of Transportation. Previously, she previously served as Administrator of the Federal Highway Administration at the U.S. Department of Transportation and Secretary of the Arizona State Department of Transportation.