3Johnson Wesley, Timothy W Butler. An introduction to date envelopment analysis: An efficiency evaluation of prisons[J].Criminal Justice Review,1997, 22:1-15.
4Enright, M. J., 1996. In: Straber, U. H. et al. (Eds), Regional Ctusters and Economic Development: A Research Agenda, Business Networks: Prospects for Regional Develipment. De Grutyer (Walter) , Berlin.
5Tim Padmore, Hervey Gibson. 1998. Modelling systems of innovation : II. A framework for industrial cluster analysis in regions research policy 26 : 625 -641
7FARRELL M J.The measurement of production efficiency[J].Journal of Royal Statistical Society,1957,120(3):253-281.
8KUMBHAKAR S C.Speccification and Estimation of production Risk,Risk Preferences and Technical Efficiency[J].American Journal of Agricultural Economics,2002,84:8-22.
9STONEMAN P.The Economic Analysis of Technological Change[M].Oxford:Oxford University Press,1983:58-60.
10FORSUND F R,LOVELL C,SCHMIDT P.A Survey of Frontiers Productions Functions and of Their Relationship to Efficiency Measurement[J].Journal of Econometrics,1980,13:5-25.
