工程投资估计误差与风险分析朱文杰（广州技术进出口公司）工程经济分析就是在对工程项目方案的投资规模、操作费用、产品价格水平、贴现率等一系列尚未发生事件所作的假设的基础上编制年现金流程表之后，再在此基础上用净现值法或内部收益率判断方案是否可行及优选。从现... Project Investment Estimation Error and Risk Analysis Zhu Wenjie (Guangzhou Technology Import & Export Corporation) engineering economic analysis is based on the assumptions made on a series of unoccurred events such as project investment scale, operating expenses, product price level, discount rate, etc. After the annual cash flow statement, it is also feasible to use the NPV method or internal rate of return to determine whether the plan is feasible and preferable. From now...