摘要
文章采用最新发展的Panel VAR模型以确定投入变量发生作用的滞后效应,辅以超效率方法以处理若干DMU同时处于效率前沿的情况。研究发现,不同滞后效应之间的技术效率存在显著差异,特别是不考虑滞后效应的传统方法倾向于高估技术效率;外资企业在技术效率上占优,民营企业在纯技术效率上占优,国有企业在规模效率上占优,且该结论对不同滞后效应具有稳健性;国有企业的经营管理优势主要体现在电力、热力行业,民营企业优势主要体现在纺织业,外资企业优势主要体现在通讯设备行业;制造业及竞争性制造业在各所有制之间技术效率表现差异明显,而在非竞争性行业中只有纯技术效率表现差异明显。
This paper employs newly developed panel VAR model to determine lag effects of input variables, and solves the problem of several DMUs＇ being simultaneously in the efficiency frontier by super-efficiency approach. The results are shown as follows： firstly, the technological efficiency varies with the lag effect, and especially the traditional methods without the consideration of lag effects are apt to overvalue the technological efficiency; secondly, technological efficiency of foreign firms dominates, and pure technological efficiency of private firms dominates while scale efficiency of state-owned firms dominates, which is robust under different lag effects; thirdly, state-owned firms hold the managerial advantage of production and supply of electric power and heat power, and the advantage of private firms is mainly in textiles while the advantage of foreign firms is mainly in commu- nication equipment industry; fourthly, technological efficiency in manufacturing or competitive manufacturing differs widely under different ownership and in non-competitive industries only pure technological efficiency shows significant difference.
出处
《财经研究》
CSSCI
北大核心
2011年第11期135-144,共10页
Journal of Finance and Economics
基金
国家自然科学基金资助项目(71073178)
教育部哲学社会科学重大攻关项目(03JZD0019)
