This paper proposes a new approach for ranking efficiency units in data envelopment analysis as a modification of the super-efficiency models developed by Tone [1]. The new approach based on slacks-based measure of ef...This paper proposes a new approach for ranking efficiency units in data envelopment analysis as a modification of the super-efficiency models developed by Tone [1]. The new approach based on slacks-based measure of efficiency (SBM) for dealing with objective function used to classify all of the decision-making units allows the ranking of all inefficient DMUs and overcomes the disadvantages of infeasibility. This method also is applied to rank super-efficient scores for the sample of 145 agricultural bank branches in Viet Nam during 2007-2010. We then compare the estimated results from the new SCI model and the exsisting SBM model by using some statistical tests.展开更多
传统的数据包络分析(Data Envelopment Analysis,DEA)模型无法比较多个有效决策单元(Decision Making Units,DMU)之间的效率高低,建立超效率DEA模型,可更好地对2011年江苏省10个城市承接离岸服务外包的投入产出效率进行实证分析。结果表...传统的数据包络分析(Data Envelopment Analysis,DEA)模型无法比较多个有效决策单元(Decision Making Units,DMU)之间的效率高低,建立超效率DEA模型,可更好地对2011年江苏省10个城市承接离岸服务外包的投入产出效率进行实证分析。结果表明:无锡、南京、苏州、镇江、泰州、常州综合效率值有效,但差距显著;南通、徐州、连云港和宿迁综合效率值无效,且效率偏低;无锡、南京、苏州和镇江处于规模效率递减状态,其他城市规模效率为递增状态,但均存在投入要素比例不合理问题,因而优化投入产出结构是提升离岸服务外包效率的关键。展开更多
文摘This paper proposes a new approach for ranking efficiency units in data envelopment analysis as a modification of the super-efficiency models developed by Tone [1]. The new approach based on slacks-based measure of efficiency (SBM) for dealing with objective function used to classify all of the decision-making units allows the ranking of all inefficient DMUs and overcomes the disadvantages of infeasibility. This method also is applied to rank super-efficient scores for the sample of 145 agricultural bank branches in Viet Nam during 2007-2010. We then compare the estimated results from the new SCI model and the exsisting SBM model by using some statistical tests.
文摘传统的数据包络分析(Data Envelopment Analysis,DEA)模型无法比较多个有效决策单元(Decision Making Units,DMU)之间的效率高低,建立超效率DEA模型,可更好地对2011年江苏省10个城市承接离岸服务外包的投入产出效率进行实证分析。结果表明:无锡、南京、苏州、镇江、泰州、常州综合效率值有效,但差距显著;南通、徐州、连云港和宿迁综合效率值无效,且效率偏低;无锡、南京、苏州和镇江处于规模效率递减状态,其他城市规模效率为递增状态,但均存在投入要素比例不合理问题,因而优化投入产出结构是提升离岸服务外包效率的关键。