再论C2R模型的最优解的存在性及灵敏度分析

在评价指标可取负值及较宽松的条件下论证了有关C^2R模型(D)及扩展的C^2R模型(D0)的最优解存在性定理．然后，在输出可取负值的情况下，给出了用(D0)来判断DEA有效的定理，并据此讨论了评价指标有相对误差时的灵敏度分析．

Further discussion on the existence of optimal solution and the sensitivity analysis for C2R model

This paper demonstrates the theorems on the existence of optimal solution for C~2R model (D) and extensive C~2R model (D_0) under broader conditions, in which evaluation indexes may take negative value. Then, when output may take negative value, this paper gives a theorem on discriminating DEA efficiency with model (D_0), and on the basis of this theorem presents some theorems on sensitivity analysis as the value of each evaluation index has relative error.