5Wang Y.M., Chin K.S. and Yang J.B. (2007). Meaguring the performances of decision--making units using geometric average efficiency [J]. Journal of the Operational Research Society 58: 929-937.
6Charnes A and Cooper WW (1963). Programming with fractional functionals [J]. Naval Research Logistics Quarterly 9, 181-185.
4[2]Cooper W W,Seiford L M,Zhu J.Handbook on data envelopment analysis[M].Boston:Kluwer Academic Publishers,2004.
5[4]Chames A,Cooper W W,Rhodes E Measuring the efficiency of decision making units[J].European Journal of Operation researches,1978,2(6):429-444.
6[5]Sherman H D,Gold F.Bank branch operating efficiency:Evaluation with data envelopment analysis[J].Journal of Banking and Finance,1985,9(2):297-316.
7[6]Berger A N,Humphrey D B Efficiency of financial institutions:International survey and directions for future research[J].European Journal of Operational Research,1997,98(2):175-212.
8[10]Fare R,Grosskopf S,Lindgren B,et al.Productivity changes in swedish pharmacies 1980-1989:A nonparametric malmquist approach[J].Journal of Productivity analysis,1992,3(1-2):85-101.
9[11]Seiford L M,Zhu J.Modeling undesirable factors in efficiency evaluation[J].European Journal of Operational Research,2002,142(1):16-20.
