1. See B. S. Frey, “On the Political Economy of Public Services”, (Mimeo., 1974); and R. E. Wagner and W. E. Weber, “Competition, Monopoly, and the Theory of Government: Full-Line Forcing and Governmental Overlapping in Metropolitan Areas”, (Mimeo., 1974).
2. G. Tullock, “Social Cost and Government Action”,American Economic Review, (May, 1969); and Y. Barzel, “Two Propositions on the Optimum Level of Producing Collective Goods”,Public Choice (Spring, 1969).
3. J. M. Buchanan, “Notes for an Economic Theory of Socialism”,Public Choice (Spring, 1970).
4. W. E. Oates,Fiscal Federalism (New York: Harcourt Brace Jovanovich, 1972) Chapter 2, and Appendix.
5. J. S. Coleman, “The Possibility of a Social Welfare Function”,American Economic Review (December 1966).