4Zhu J. Quantitative Models for Performance Evaluation and Benchmarking: Data Envelopment Analysis with Spreadsheets and DEA Excel Solver [ M]. . Kluwer Academic Publishers,2003.
5Seiford L M, Zhu J. Modeling Undesirable Factors in Efficiency Evaluation [ J ]. European Journal of Operational Re- search, 2002, (142》.
6Fare Rolf , Grosskopf Shawna, Pasurka Carl A. Environmental Production Functions and Environmental Directional Dis- tance Functions: A Joint Production Comparison. Available at SSRN: http: / / ssrn. coin/ abstract = 506222. 2004 (19》.
7Tone K, Dealing with Undesirable Outputs in DEA : A Slacks - based Measure (SBM》 Approach, GRIPS Research Re- port Series I, 2003,0005.
4James Manyika, Michael Chui etal. Big data.. The next frontier for innovation, competition, and productivity [EB/OL]. [2011-05-21]. http..//www, mckinsey, corn/ insights/business_technology/big_data the next_fron- tier_for_innovation.
