基于SFA模型的我国区域煤炭生产技术效率及其影响因素的实证研究

使用我国19个地区的国有重点煤矿2001~2005年的panel data数据,运用基于对数型柯布—道格拉斯生产函数的随机前沿分析(SFA)模型,实证研究了我国区域煤炭生产的技术效率,并分析技术效率的主要影响因素。结果表明:从时间上看,煤炭生产技术效率均值近似呈现倒V形变化;从区域角度看,煤炭生产技术效率的区域差异较大;地质条件对煤炭开采技术效率有负面影响,而运输条件、人力资源、开采技术等因素对区域煤炭开采技术效率有正面影响,其中人力资源和开采技术影响较大。

The Empirical Research of Technical Efficiency and Determinants of Chinese Regional Mining on Stochastic Frontier Analysis Model

This paper uses a panel data of 19 regions over the period 2001~2005,and applies the stochastic frontier analysis model on Cobb-Douglas production function to study the technical efficiency of Chinese regional mining and determinants of technical efficiency.Empirical results shows that: firstly,from the time dimension,the average efficiency of mining is increasing in the first several years and then is decreasing in the following years,the tendency looks like a inverse "V";secondly,from the region dimension,the average efficiency of mining discriminates largely;thirdly,geological factor has negative effect on the technical efficiency,but transportation,human resources and mining technology have positive effect on the technical efficiency of mining,in which human resources and mining technology are the key factors.