4[1]"It (economics) is a method rather than a doctrine,an apparatus of the mind,a technique of thinking which helps it spossessor to draw correctconelusions",John Maguard Keynes.James D.Gwarlney.Economics.Private an dpublic choice,9.
8Aivazian, V. A., and J. L. Callen, "The Coase Theorem and the Empty Core," Journal of Law and Economics, 24 (1981), 175-181.
9Arrow, K. J., "The Organization of Economic Activity: Issues Pertinent to the Choice of Market versus Nonmuarket Allocation," in:The Analysis and Evaluation of public Expenditures : The PPB System,1969.
10Arrow, K. J., "The Property Rights Doctrine and Demand Revelation under Incomplete Information," in Michael J. Boskin(ed.), Economies and Human Welfare: Essays in Honor Tibor Scitovsky, New York: Academic Press, 23-39.