基于不可分离变量的非期望SBM效率评价方法

基于松弛变量度量法(slacks-based measure,SBM)评价模型,首先区分投入、期望产出和非期望产出为可分离变量和不可分离变量,构建了复杂生产系统基于不可分离变量的非期望SBM效率评价模型,该模型更加符合生产系统的实际生产过程;其次基于非期望产出总量规制目标,进一步构建了非期望产出规制视角下的不可分离变量非期望SBM模型,该模型能直接计量非期望产出规制对系统整体效率的影响程度。最后,以0.5为步长,运用实例检验了非期望产出规制影响生产系统整体效率的灵敏度。

Undesirable SBM system efficiency evaluation methods based on non-separable variables

On the basis of slacks-based measure (SBM) model, firstly, divide the inputs, desirable outputs and undesirable outputs into separable and non-separable variables, build the undesirable SBM efficiency evaluation model based on non-separable variables to the complex production system. This model is more suitable to the actual production process of the production system. Then, on the basis of total regulation target of undesirable outputs, build the non-separable variables undesirable SBM model according to the perspective of regulation of undesirable outputs, this model measures the impact of regulation of undesirable outputs on the efficiency of the whole system. Finally, take 0.5 as the step length, use an example to test the sensitivity of its impact.