投资项目经济评价指标的研究

A Research on the Economical Target of Investment Evaluation

本文在探讨“平坦”模糊数及其运算的基础上,提出模糊内部收益率的概念;并利用Prade与Dubois提出的比较两个模糊数大小的指标,给出“近似相等”的概念;从而给“模糊内部收益率”的计算提供了一个方法。

In this paper, we put forward the concept of fuzzy internal rate of return on the basis of the flat fuzzy numbers and its calculation, then use index that had been given by prade and Dubois to compare degree of two flat numbers and to define the 'approximate and equal' concept. At last, we give a computing method of the fuzzy internal rate of return.