为了解决传统DEA模型所存在的判别能力弱和不现实权重两个缺陷,本文提出了一种双目标DEA模型。该模型在相同的约束条件下,同时以最大化各自效率和最小化所有效率值差异为目标。最后,通过某商业银行分支机构效率评价实例对所提出的方法进行了演示,说明了所提出方法的优点,着重说明了该方法可以很好地解决传统DEA方法所存在的两个缺陷。
A bi-objective DEA model is proposed in this research to improve the shortcomings of traditional DEA models,namely the lack of discriminating power and the unrealistic weights.The proposed model is aimed to maximize the individual efficiency and minimize the efficiency differences among all DMUs simultaneously under the same constraints.Finally,a case of the bank branches is used to illustrate the proposed approach,the advantages are pointed out and the fact that the proposed approach can eliminate the two main shortcomings of traditional DEA models is emphasized.