6Dasgupta. P, Heal. G, The Optimal Depletion of Exhaustible Resources [ J ]. The Review of Economic Studies, 1974, Vol. 41 : 3 -28.
7Solow. R. M, The Economics of Resources or the Resources of Economics [ J ]. The American Economic Review, 1974, Vol. 64, No. 2:1 -14.
8Kay. J. A,. Mirrlees. J. A, The Desirability of Natural Resource Depletion, In The Economics of Natural Resource Depletion, edited by D. W. Pearce and J. Rose. London: Macmillan, 1975:103.
9Meade. J. E, The Intelligent Radicals Guide to Economic Policy: The Mixed Economy[ M ]. London: Allen & Unwin, 1975 : 117.
10Turner. R. K, Pearce. D and Bateman. I, Environmental Economics : an Elementary Introduction [ M ]. New York : Harvester Wheatsheaf, 1994.
