技术创新情境下中国电力行业要素生产弹性及生产效率分析  

Analysis on Factor Production Elasticity and Production Efficiency of China’s Power Industry in the Context of Technological Innovation

作　　者：杨栩[1] 卢焱 马艺翔 余乐安 YANG Xu;LU Yan;MA Yixiang;YU Lean(School of Economics and Management,Harbin Engineering University,Harbin 150001;CCCC Fourth Highway Engineering Co.Ltd,Beijing 100022;School of Economics and Management,Beijing University of Chemical Technology,Beijing 100029;School of Business,Binzhou Institute of Technology,Binzhou 256600)

机构地区：[1]哈尔滨工程大学经济管理学院,哈尔滨150001 [2]中交第四公路工程局有限公司,北京100022 [3]北京化工大学经济管理学院,北京100029 [4]滨州魏桥国科高等技术研究院,滨州256600

出　　处：《系统科学与数学》2022年第10期2727-2739,共13页Journal of Systems Science and Mathematical Sciences

基　　金：国家自然科学基金项目(72034003)资助课题。

摘　　要：为探究技术创新对于电力市场供给的影响,文章通过构建面板随机前沿模型,研究新常态时期中国电力行业要素投入生产弹性及生产效率的变动趋势,并分析了不同投入要素对电力市场供给的影响力大小和方向.进而,通过对比不同地区和省份在新常态时期前后生产效率的差异,分析了中国各地电力行业技术创新的变动趋势.通过一系列假设检验,证明了面板随机前沿模型的适用性,可以对中国电力行业的技术效率进行分析,并确定了包含时间变量的超越对数生产函数设定形式.结合参数估计结果,证明了资本的生产弹性为正,这说明电力行业仍属于资本密集型行业,现阶段资本投入的增加能够较大提高电力市场供给.同时,研究证明了中国电力行业整体技术效率较高,且步入新常态时期以来,西部地区电力行业平均技术效率的增长幅度高于其他地区,西部地区电力行业高技术效率省份明显增多,宁夏、云南和新疆省份的电力行业技术效率较新常态时期之前提升明显,说明包括高压/特高压输电技术、节能技术、新能源技术、储能技术等电力创新技术的应用,有助于提高电力行业技术效率.In order to explore the effect of technological innovation on the supply of the electricity market,this paper investigates the changing trend of the production efficiency of China’s power industry during the"New Normal"period by constructing a panel stochastic frontier model,and analyzes the impact and direction of different input factors on the supply of the electricity market.Furthermore,by comparing the differences in production efficiency between different regions and provinces before and after the"New Normal"period,the changing trend of technological innovation in the power industry in various regions of China is analyzed.Through a series of hypothesis tests,the applicability of the panel stochastic frontier model is proved.By using this model,the technical efficiency of China’s power industry can be analyzed,and the set form of the transcendent logarithmic production function with time variables can be determined.Combined with the results of parameter estimation,we prove that the output elasticity of capital is positive,indicating that the power industry is still a capital-intensive industry,and the increase in capital input at this stage can greatly improve the supply of the electricity market.At the same time,this study proves that the overall technical efficiency of China’s power industry is relatively high.In particular,since entering the"New Normal"period,the average technical efficiency of the power industry in the western region has increased significantly relative to other regions,the provinces with high technical efficiency in the power industry in the western region have increased significantly,and the technical efficiency of the power industry in Ningxia,Yunnan and Xinjiang provinces has improved significantly compared with before the"New Normal"period,indicating that the application of power innovation technologies including high voltage/ultra-high voltage transmission technology,energy saving technology,new energy technology,energy storage technology and other power innovation technologie

关 键 词：技术创新 电力市场供给 面板随机前沿模型 生产效率 超越对数生产函数 

分 类 号：F426.61[经济管理—产业经济] F273.1F224