我国煤炭企业安全效率评价及其优化

发布时间：2019-02-28 10:24

【摘要】：为合理配置煤炭企业安全投入,优化企业安全结构,提高煤炭企业安全效率,结合我国煤炭企业发展实际,采用不变替代弹性(Constant Elasticity of Substitution,CES)生产函数分析方法,对2005—2011年我国煤炭企业安全效率进行评价与分析,进而利用最小二乘法估计最优CES生产参数,并对煤炭企业安全效率进行优化。结果表明,我国煤炭企业安全效率投入中的研发费用、从业人数、煤炭产量和安全投入比例为1.39∶1∶2.73∶2.28,而优化后的最优投入比例为5∶1∶8.09∶4.82。将CES优化结果与6家安全效率较高的煤炭企业比例(4.68∶1∶7.64∶4.35)相比较,发现二者十分接近,从而论证了该方法的实用性与有效性。研究表明,我国煤炭企业资源利用率低,人员冗余度高,人均安全投入和研发费用严重不足。
[Abstract]:In order to rationally allocate the safety input of coal enterprises, optimize the safety structure of coal enterprises, and improve the safety efficiency of coal enterprises, combined with the actual development of coal enterprises in China, the production function analysis method of invariable substitution for elastic (Constant Elasticity of Substitution,CES) is adopted. This paper evaluates and analyzes the safety efficiency of coal enterprises in China from 2005 to 2011, then estimates the optimal CES production parameters by least square method, and optimizes the safety efficiency of coal enterprises. The results show that the R & D expenditure, the number of employees, the ratio of coal production to safety input in China's coal enterprises are 1.39 ~ 1, 2.73, 2.28, The optimal investment ratio after optimization is 5? 1? 8. 09? 4.82. Comparing the results of CES optimization with the proportion of 6 coal enterprises with higher safety efficiency (4.68 ~ 1 ~ 7.64 ~ 4.35), it is found that the two methods are very close to each other, thus demonstrating the practicability and effectiveness of the method. The research shows that the resource utilization rate of coal enterprises in China is low, the personnel redundancy is high, and the per capita safety investment and R & D expenses are seriously insufficient.
【作者单位】：中南大学资源与安全工程学院数字矿山研究中心;
【基金】：国家高技术研究发展计划项目(“863”计划)(2011AA060407)
【分类号】：F426.21;X936

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