多元投资的铁路经济评价资本金动态算法研究

Dynamic Algorithm for the Capital Calculation in Railway Economic Evaluation Under Multiple Investment Subjects

在铁路投资项目中,资本金是一个很重要的基础数据,它不仅关系到投资各方的出资额,而且也影响最终的经济评价结果指标。本文分析了现行经济评价中资本金计算存在的问题及原因,提出了由静态总投资及资本金比例推算出动态总投资的算法,并通过案例分析比较了按静态投资算法和按动态投资算法两种情形下各投资主体出资额的变化,以及对最终经济评价指标的影响。

Investment capital is very important basic data for railway investment project. It not only decides the capital contribution for each investor, but also affects theindices of the economic evaluation. This paper firstly analyzed the problems and reasons existed in the capital calculation in current economic evaluation process, and then proposed a dynamic algorithm for calculating the capital, which was reasoned from the static investment and the capital ratio. Through analyzingacase, the capital differences calculated respectively with the static or dynamic algorithms were compared for each investor, and the influences on the final economic evaluation indices were analyzed too.