项目现金流变动下内部收益率敏感性排序研究

运用全微分解剖内部收益率对投资、经营成本、收益的敏感性分析过程，提炼出利用各现金流折现值之和判定上述三因素变动下内部收益率敏感性排序的方法：基本方案下某因素现金流的折现值之和大于另一因素现金流的折现值之和，则内部收益率对前一因素的敏感性程度也超过对后一因素的敏感性程度。这一结论掠过了内部收益率与各因素变动率的复杂关系和烦琐的计算，给项目投资风险的定性评价带来方便、简洁之效。

Sorting of Sensitivity of Internal Rate of Return under the Variation of Project Cash Flow

After analyzing the sensitivity of IRR to investment, cost and earnings, a method to sort the sensitivity of IRR are discovered. The principle of the method is that the sensitivity of IRR to the variable is positively related to the discounted cash flow of this variable. This founding means the qualitative assessment of investment risk maybe can skim over the complex calculations used before.