用“贡献比例法”研究铁路运输各部门的产量和经济效益

RESEARCH ON OUTPUT AND BENEFITS OF EACH DEPARTMENT OF RAIL WAY TRANSPORTATION SYSTEM WITH“CONTRIBUTIO NRATIO METHOD”

长期以来，铁路运输系统缺乏所属部门的产量和经济效益指标。本文提出的“贡献比例法”是解决此问题的一种有效方法。文章首先阐述研究的背景，然后介绍此法的要点，最后以铁路电务部门为例。

Over a long period,the output and benefits indexes have not been established inthe departments of the railway transportation syetem,The“Contribution Ratio Method”given is an effective method to solve these problems.The paper describes the research background at first,then illustrates the main points of this method.Finally,an example to estimate the output and benefits indexes in railway electrical department is given。