8Nordhaus, W. Mnaging the Global Commons : The Economics of Climate Change. MIT Press, Cambridge MA, 1994.
9Solow, R. M. A contribution to the theory of economic growth. Quarterly Journal ofEconomics, 70,1956:p 65 -94.
10Kamien, M. I. and Schwartz, N. L. , The role of common property resources in optimal planning models with exhaustible resources. In: Smith, V. K. and Krutilla, J. V. (Editor), Explorations in Natural Resource Economics. Johns Hopkins University Press 1982.