| Summary: | This paper chooses 198 listed companies in strategic emerging industries, using DEA model to study the efficiency of equity financing, and carries on efficiency analysis, investment redundancy and output shortage analysis and industry comparative analysis. The results show that the efficiency of equity financing of listed companies in strategic emerging industries is inefficient. The comprehensive efficiency, pure technical efficiency and scale efficiency are 0.370, 0.603 and 0.563. From the scale pay, the economic scale of Chuanrungufen should be increased, Zhongguobaoan and other 179 decision-making units should be reduced; Dongxulantian and other 169 decision-making units have different levels of input redundancy and lack of output; equity financing efficiency is unevenly developed between different industries.
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