我国低碳企业技术效率及其影响因素的实证研究

An Empirical Study on Technical Efficiency of Low-carbon Enterprise and Its Affecting Factors in China

本文以2003-2009年低碳企业上市公司数据为基础,运用基于对数型的柯布-道格拉斯生产函数的随机前沿模型研究了我国低碳企业技术效率及其影响因素。研究发现,我国低碳企业平均技术效率为0.751,企业间技术效率变动存在较大差异且有进一步扩大的趋势;我国低碳企业产出增长主要是基于资本驱动的,劳动力的贡献较低;资金运用能力对低碳企业技术效率具有显著促进作用,技术能力、企业规模均与技术效率呈现较为显著的负相关,资本结构对技术效率的提高具有一定的抑制作用,我国低碳企业技术无效率程度有不断减弱趋势,但这种趋势还不够明显。

Based on the data of the listed companies during the years from 2003 to 2009,by using stochastic frontier model of Cobb-Douglas production function,we carried out an empirical study on the technical efficiency of low-carbon enterprises and their affecting factors.The research show that the average technical efficiency of low-carbon enterprises is 0.751,and the huge difference exists in changes of technical efficiency among enterprises,meanwhile,the difference has the tendency to expand;The output growth of low-carbon enterprise is mainly driven by the capital,while the labor force contributes less;the ability to employ the fund highly promotes the technical efficiency of low-carbon enterprise;there is a negative correlation appeared between the technological capabilities and the technical efficiency,so is the enterprise scale and technical efficiency;capital structure produces the inhibition on the technical efficiency;the degree of technical inefficiency seems to be lessened gradually,but the trend is not significant.