基于SFA的中国汽车制造企业成本效率分析

运用SFA方法,对2006—2009年中国50家上市汽车制造企业的成本效率进行了实证研究,并分析了股权集中度、企业规模及企业所属区域等因素对成本效率的影响。研究表明:股权越集中,成本效率越低;用总资产代表的企业规模与成本效率呈正相关,即企业规模越大,成本效率越高;东部地区企业的成本效率高于西部地区,西部地区企业的成本效率高于中部地区。从总体上看,我国汽车制造业上市企业成本效率集中在(0.9,1),表明效率损失较少。

The Research of Cost Efficiency of Chinese Automobile Manufacturing Enterprises Based on Stochastic Frontier Analysis Model

This paper,using data of 50 listed automobile manufacturing enterprises over the period 2006-2009,applies the stochastic frontier analysis model to study the cost efficiency and analyzes the influence on cost efficiency of the ownership concentration,the scale,the zone and so on.The empirical results show as follows: the more ownership concentrates,the lower cost efficiency is;the cost efficiency of the largest shareholder,which is state-owned share,is higher than non-state-owned;the scale of firms and cost efficiency are positive correlation,i.e.,the larger the scale of firm is,the higher cost efficiency is;the cost efficiency of the east zone is higher than the west zone,and the cost efficiency of the west zone is higher than the middle zone.In total,the cost efficiency of Chinese listed automobile manufacturing enterprises concentrates on(0.9,1),which shows efficiency loss is very little.