2National Council for Public-Private Partnerships (NCPPP). Testing Tradi- tion: Assessing the Added Value of Pub- lic-Private Partnerships 2012.
3R. Geddes and B. L. Wagner. "Why Do States Adopt Laws Enabling Pub- lie-Private Partnerships?", 78 Journal of Urban Economics, 2013 (30).
4IL Geddes. "Competition Issues and Private Infrastructure Investment through Public-Private Partnerships," in T. K. Chengand others, eds, Competition and the State, Stanford University Press, 2014.
5David Schrank and others. Urban Mobility Report 2010. Texas A&M Transportation Institute.
6San Francisco County Transporta- tion Authority (SFCTA), California De- partment of Transportation (Caltrans), Federal Highway Administration (FH- WA), and Golden Link Concessionaire. Presidio Parkway: San Francisco' s Gate- way, October 2014.
7Jack Wells, Chief Economist, U.S. Department of Transportation. Presenta- tion to the National Surface Transporta- tion Policy and Revenue Study Commis- sion, The Role of Transportation in the U.S. Economy, June 26, 2006.
8Dale W. Jorgenson and others. "Principles of Efficiency: Discussion", 63 American Economics Review 54, No. 3, Papers and Proceedings of the Seven- ty-sixth Annual Meeting of the American Economic Association (May 1964), 86-96.
9Kenneth J. Arrow and Robert C. Lind. "Uncertainty and the Evaluation of Public Investment Decisions", 60 Ameri- can Economics Review 364 (1970).
10Adolf A. Berle Jr. and Gardiner C. MeansThe Modem Corporation and Pri- vatePronertv. Transaction Publishers 1991.