摘要
运用三阶段DEA模型对2016年我国17家煤炭上市公司的安全投入产出效率进行实证分析。研究结果表明,企业规模、从业人员劳动生产率以及受教育程度3个环境变量均正向影响安全效率;剔除环境变量和随机误差的影响后,煤矿企业安全投入产出的综合技术效率与纯技术效率的均值都上升,而规模效率的均值下降,企业安全投入产出效率整体较高;规模效率偏低是制约安全投入产出效率提高的主要原因。煤矿企业应该改善自身规模配置能力,优化安全资金的投入结构,提高技术效率和管理水平。
The three-stage DEA model is used for the empirical analysis of the safety input-output efficiency of 17 listed coal companies in China.The results show that three environmental variables,including enterprise size,employees’labor productivity and education level,positively affect safety efficiency.After eliminating the influence of environmental variables and random errors,the average value of the technical efficiency and pure technical efficiency increases,while the average value of the scale efficiency decreases,and the overall safety input-output efficiency of coal mine enterprises is higher;low scale efficiency is the main reason for restricting the output efficiency of safety investment.Coal mining enterprises should improve their scale allocation capacity,optimize their investment structure of safety funds,and improve their technical efficiency and management level.
作者
于晓燕
姚庆国
陈祺
赵丽霞
YU Xiaoyan;YAO Qingguo;CHEN Qi;ZHAO Lixia(College of Economics&Management,Shandong University of Science and Technology,Qingdao 266590,China;College of Mining and Safety Engineering,Shandong University of Science and Technology,Qingdao 266590,China)
出处
《煤矿安全》
CAS
北大核心
2019年第12期243-247,共5页
Safety in Coal Mines
基金
国家自然科学基金面上资助项目（51574157）
山东省研究生教育创新计划资助项目（SDYC15055）
山东省高等教育本科教学改革资助项目（M2018X216）
关键词
煤矿企业
安全投入
安全产出
三阶段DEA模型
技术效率
coal mine enterprises
safety investment
safety output
three-stage DEA model
technical efficiency
