Research On Sample Data Envelopment Analysis Method Based On C～2W Model And C～2WY Model

Based on the idea of C~2W model, the data envelopment analysis model with infinite sample units (Sam-C~2W) and the corresponding definition of SC~2W-DEA efficiency are given. The property of Sam-C~2W model and its relation with traditional DEA models are analyzed, and the relation between the SC~2W-DEA efficiency based on Sam-C~2W model and the corresponding Pareto solution to multi-objective programming is discussed. Furthermore it analyzes decision making unit's feature of distribution, projection property and model definition in the sample possible set. Finally, Base on the comprehensive data envelopment analysis with cone-structure, Sam-C~2WY model and corresponding definition of SC~2WY-DEA efficiency are given. The property of Sam-C~2WY model and the relationship between Sam-C~2WY and other sample evaluation models are discussed. Also the relation between the efficiency and weak efficiency of SC~2WY-DEA model and non-dominated solution of the corresponding multiobjective programming is discussed.