基于DEA-Tobit的建筑业企业效率研究

Research on efficiency of construction enterprises based on DEA-Tobit

采用DEA-Tobit模型,对我国19家建筑业企业生产效率及其影响因素进行了分析,并结合malmquist指数,对样本期间建筑业企业效率变化做动态分析。结果表明:第一2,007—2009年民营企业效率相对领先,2008年金融危机后中央企业效率仍保持上升;第二,2007—2009年中央企业malmquist指数相对较小,总体发展态势下降,需要及时改善;第三,科研投入和资产收益率与企业效率显著正相关,人均总资产正相关,股权结构不显著正相关。

DEA-Tobit model is used to evaluate the productive efficiency and its influence factors of the 19 listed construction enterprises in China from 2007 to 2009. The paper also analyzes the compa- nies＇ efficiency change based on the malmquist index. The results show that： First, the productive efficiency of private enterprises is better, while the productive efficiency of the central enterprises kept rising after the financial crisis;second, the malmquist index of the central enterprises is relatively small and their overall development trend declines;third, the input of scientific research and the return on assets have a significantly positive correlation with the productive efficiency,the total assets per capita have a positive correlation with the productive efficiency, and the ownership structure has a non-significantly positive correlation with the productive efficiency.