我国民营能源上市公司技术效率与要素投入优化分析
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摘要
运用以投入为导向的DEA模型对2012—2018年我国民营能源上市公司技术效率及决定因素进行分析,测算投入要素的径向调整和松弛调整,优化要素投入。研究表明:我国民营能源上市公司总体技术效率较高,除龙宇燃油一直处于最优外,其他公司仍存在改进空间。改进方式应主要通过优化规模水平,其次应加快技术创新、优化制度和管理水平。研究期径向调整均值为10%,个体差异大。准油股份径向调整值最大,其次为宝泰隆。公司应加快技术创新,优化制度、规模、管理水平。投入要素中营业成本无松弛调整、管理费用松弛调整少、员工数松弛调整多。公司应相应适当减少投入要素,优化资源配置。
Using the input-oriented DEA model to analyze the technical efficiency and determinants of China's private energy listed companies in 2012-2018,measure the radial adjustment and slack adjustment of input factors,and optimize the input of factors. The research showed that the overall technical efficiency of China's private energy listed companies was relatively high. Except Longyu fuel has been in the best position,other companies still had room for improvement. The improvement method should mainly focus on optimizing the scale of the scale,and secondly,accelerate the technological innovation,optimization system and management level. The mean radial adjustment during the study period was 10%,and the individual differences were large. The Zhundong Petrotech Co.,Ltd. had the largest radial adjustment,followed by Baotailong. The company should accelerate technological innovation and optimize the system,scale and management level. There is no slack adjustment in operating costs,less adjustment of management fee slack,and more adjustments in employee slack. Companies should appropriately reduce input factors and optimize resource allocation.
Using the input-oriented DEA model to analyze the technical efficiency and determinants of China's private energy listed companies in 2012-2018,measure the radial adjustment and slack adjustment of input factors,and optimize the input of factors. The research showed that the overall technical efficiency of China's private energy listed companies was relatively high. Except Longyu fuel has been in the best position,other companies still had room for improvement. The improvement method should mainly focus on optimizing the scale of the scale,and secondly,accelerate the technological innovation,optimization system and management level. The mean radial adjustment during the study period was 10%,and the individual differences were large. The Zhundong Petrotech Co.,Ltd. had the largest radial adjustment,followed by Baotailong. The company should accelerate technological innovation and optimize the system,scale and management level. There is no slack adjustment in operating costs,less adjustment of management fee slack,and more adjustments in employee slack. Companies should appropriately reduce input factors and optimize resource allocation.
引文
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[2]吴江,谭涛,杨珂,等.中国全要素能源效率评价研究--基于不可分的三阶段DEA模型[J].数理统计与管理,2019,38(3):418-432.
[3]陈海跃.中国区域能源效率及其影响因素分析--基于DEA-Malmquist模型[J].贵州财经大学学报,2017(6):32-39.
[4]刘殿国,肖辉旭.泛珠三角区域能源效率影响因素的实证研究--基于社会嵌入性视角和多层统计模型的分析[J].软科学,2017,31(4):80-84.
[5]马晓君,魏晓雪,刘超,等.东北三省全要素能源效率测算及影响因素分析[J].中国环境科学,2017,37(2):777-785.
[6]向冰.我国能源上市公司技术效率及其影响因素研究[D].衡阳:南华大学,2016.
[7]李幸子,马恒运.粮食大省要素投入结构调整及经济效果估价--以河南省为例[J].农业技术经济,2016(1):82-89.
[8]朱帮助,吴万水,王平.基于超效率DEA的中国省际能源效率评价[J].数学的实践与认识,2013,43(5):13-19.
[9]CHARNES A,COOPER W W,RHODES E.Measuring the efficiency of decision making units[J].European journal of operational research,1978,2(6):429-444.
[10]BANKER R D,CHARNES A,COOPER W W.Some models for estimating technical and scale inefficiencies in data envelopment analysis[J].Management science,1984,30(9):1078-1092.