摘要
本文是对经验技术效率测量方法的综合研究。效率分析,是经济学研究的核心内容之一。技术效率测量,是经济学实证分析的重要组成部分。进行技术效率的经验研究,必须基于某种适当的技术效率测量方法。本文以Koopmans给出的技术效率的定义为基础,对技术及技术效率进行模型化描述,研究了距离函数、Farrell测量及效率测量应满足的性质,比较了四种常用效率测量方法。并详细讨论了技术效率测量的非参数方法-DEA方法,说明DEA有效的生产单位为真正的技术有效,该方法具有其它方法不可比拟的优势。
This paper is a summary research of alternative approaches to the empirical measurement of technical efficiency. Efficiency analysis is one of the core topics in Economics. Measuring technical efficiency is an important part in economic empirical research. If the notion of technical efficiency is to have empirical content, it must be based on proper measurement approach. It is the purpose of this paper. Based on the definition of technical efficiency by Koopmans, we describe technique and technical efficiency by model, study the distance function, Farrell measurement and the properties of measurement of technical efficiency. Then we compare four approaches to the measurement of technical efficiency. We specially study the nonparametric approach of measuring technical efficiency and show that DEA efficiency is the true technical efficiency. So DEA approach has particular advantage compared with other approaches.
出处
《中国软科学》
CSSCI
北大核心
2004年第4期147-151,共5页
China Soft Science
