我国省际能源效率及其影响因素分析——基于2001～2010年面板数据的SFA方法

Research on Inter-provincial Energy Efficiencies in China and the Determinants——SFA Method Based on 2001-2010 Panel Data

运用基于谢泼德能源距离函数的随机前沿分析方法,对2001～2010年我国省际能源效率及其影响因素进行实证分析。研究结果显示,样本期内大多数省份的能源效率经历了"先降后升"的变化趋势,转折点一般出现在2006年左右,表明"十一五"时期节能降耗政策效果明显;我国能源效率总体水平仍不高,呈现出从东向西梯次递减的区域分布特征。全国范围来看,经济发展水平、电力占能源消耗比重和外商直接投资对能源效率具有显著的正效应,资本-劳动比和第二产业比重具有负向影响,各影响因素的作用在地区之间存在明显差异。

Using stochastic frontier analysis based on Shephard energy distance function,the paper analyzes the inter-provincial energy efficiency and their determinants from 2001-2010 in China.The results show that the energy efficiency in most provinces decreased and then increased in the sample period,the turning points are generally around 2006,indicating that the effect of energy-saving policy during 11th five-year plan period is obvious.However,the overall levels of energy efficiency are not high,and appear gradually decreasing distribution characteristics from east to west.Nationally,economic development,proportion of electricity in energy consumption,and FDI has a significant positive effect;capital-labor ratio and proportion of secondary industry have a negative effect.Furthermore,the effects of influencing factors are different among regions.