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使用VRS-DEA和Tobit-DEA2种模型对我国煤炭行业26家上市公司进行技术效率、松弛变量和影响因子分析,得出我国煤炭行业上市公司技术效率偏低、规模效益递增、投入过量等结论。并对出现不同问题的公司进行分析,有针对性地提出了解决方案。
Using VRS-DEA and Tobit-DEA2 models to analyze the technical efficiency, slackening variables and influencing factors of 26 listed companies in China’s coal industry, we conclude that the listed companies in China’s coal industry have low technical efficiency, increasing scale benefits and excessive input. Analyze the companies that have different problems, and propose solutions in a targeted manner.