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Study on sample data envelopment analysis method with restrain cone

MA Zhan-xin1,L Xi-ming2(1.School of Economics and Management,Inner Mongolia Univ.,Hohhot 010021;2.School of Science and Technology,Inner Mongolia Univ.,Hohhot 010021)  
To solve the problem that data envelopment analysis(DEA) methods can not provide evaluating information by a determinate frontier,a new sample DEA method with restrain cone(PSam-C2WH) is provided by using some sample units.At the same time,the definitions of SCDEA-efficiency and weak-SCDEA-efficiency are developed.The relationships between(PSam-C2WH) and other evaluation models are discussed.In addition,the relationship between SCDEA-efficiency and the relevant multiple objective programming pareto effective solution is studied.Finally,the properties on projection and distribution of decision making units are studied,and the meaning of SCDEA-efficiency and weak-SCDEA-efficiency are explained.
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