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带有SEM约束锥的DEA模型及在建筑业效率中的应用

Keywords: 结构方程,约束锥,数据包络分析,建筑业

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Abstract:

在对数据包分析(DEA)模型发展历程回顾的基础上,为了提高投入、产出指标选取以及权重确定的客观性,解决投入、产出指标存在隐变量以及测量指标间存在关联性或因果关系等问题,引入结构议程模型(SEM)约束锥,提出带有SEM约束锥的DEA模型.该模型利用SEM对原因变量和结果变量进行回归分析,客观确定指标权重,进而利用SEM方法对DEA模型权重的选择加以限制.利用该模型对中国区域建筑产业竞争效率进行实证分析结果表明,通过该模型缩小了分析结果与实际状况之间的偏差,同时提高了分析的精度.

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