摘要
投资收益率是研究投资过程重要的技术经济效果指标.本文根据净现值(NPV)为零的收益率为投资内部收益率的原理,对投资内部收益率的计算方法进行了理论分析和探讨,从而导出两种新的计算方法.实例与现有的计算方法相比较误差很小,说明新的计算方法可行,且计算方便.
The rate of return is an important economic measurment of effctiveness in evaluation of investment alternatives.Based on the concept of imternal rate of return making the net present value equal zero, the calculation of internal rate of retrun was studied and two new mathods of calculation were worked out.Compared with the present method through living examples, the error of the new methods is very small, and it argues that the new methods are feasoble and convenient.
关键词
投资
收益率
净现值
rate of return on investment
net present value
