2Nicholas Kaldor. Welfare Propositions of Economics and Interpersonal Comparisons of Utility [ J ] . The Economic Journal. 1939 (Vol. 49) : p553.
3J. R. Hicks. The Foundations of Welfare Economics [J] . The Economic Journal, Vol. 49, No. 196 (Dec., 1939): 696-712.
4John M. Gowdy. The Revolution in Welfare Economics and its Implications for Environmental Valuation and Policy [ W ] . Rensselaer Working Papers in Economics, 2003 : 12.
5Randall, A. Benefit - Cost Considerations Should be Decisive when there is Nothing More Important at Stake [ J ], Economics, Ethics, and Environmental Policy, Routledge, 2002 : 3 - 68.
6Aldo Leopold. The Land Ethic, A Sand Country Almanac [ M ] . New York: Oxford University Press, 1949 : 261.
