CAJ | 학술논문

在规模报酬可变的假设条件下,构建了链形系统的关联网络DEA模型.利用这个模型不仅可以同时测算整个系统及其每个子过程的纯技术效率,而且还能考查决策单元联接的有效性.结合规模报酬不变下的关联网络DEA模型,可以进一步测算链形决策单元的系统规模效率.对我国14家商业银行2005年的效率测算结果表明：由于考虑了子过程之间的关联性,新建模型较传统的独立模型更合理,也使决策单元的效率更具有可分性.
재규모보수가변적가설조건하,구건료련형계통적관련망락DEA모형.이용저개모형불부가이동시측산정개계통급기매개자과정적순기술효솔,이차환능고사결책단원련접적유효성.결합규모보수불변하적관련망락DEA모형,가이진일보측산련형결책단원적계통규모효솔.대아국14가상업은행2005년적효솔측산결과표명：유우고필료자과정지간적관련성,신건모형교전통적독립모형경합리,야사결책단원적효솔경구유가분성.
A relational network DEA model is developed in this paper under the assumption of variable returns to scale. With this model, not only pure technical efficiencies of the series system and its subprocesses can be calculated simultaneously, but also the effectiveness of connection between those subprocesses can be identified. Moreover, the new model together with the relational network DEA model under constant return to scale can be used further to measure the scale efficiency of the series system. The proposed model is finally applied in measuring the system efficiency of 14 commercial banks in China. The efficiency scores are more reasonable and divisible than those obtained by the conventional independent model since the connection between its sub-processes is under consideration.