2Schaltegger S, Sturm A. Okologische Rationalitat Ansatzpunkte Zur Ausgestaltung You Okologieorienttierten Management Instrunenten[J]. Die Untemehmung, 1990,(4).
3WBCSD. Eco-efficient Leadership for Improved Economic and Envi-ronmental Performance [M]. Geneva: WBCSD, 1996.
4Schmidheiny S, Zorraquin. Financing Change: the Financial Commu- nity, Eco- efficiency and Sustainable Development [M]. Cambridge: The MIT Press,1996.
5Farrell M J. The Measurement of Productive Efficiency[J].Journal of the Royal Statistical Society, 1957,120(3).
6Battese G E,Coelli T J. Frontier Production Functions ,Technical Ef- ficiency and Panel Data: with Application to Paddy Farmers in India [J].Journal of Productivity Analysis,1992,(3).
