正确确定基准投资效益系数或投资回收年限,对于评价基本建设投资的经济效果,进行方案之间的技术经济比较,指导经济建设走上正确的轨道,有着重要的意义。过去,我们搞基本建设,只讲主观需要,不讲客观条件,只讲投资,不讲经济效果,造成基本建设投资迟迟不能还本,或者建设项目投产后亏损,使国家投资受到损失,其经验教训是值得很好记取的。国外十分重视对投资经济效果的评价,把它作为考虑工业企业建设的可行性的一个重要根据。怎样评价工业企业建设的经济效果,主要采用“投资效益率”这一综合性的比较指标。在计算“投资效益率”时,一般分为考虑货币的时间价值和不考虑货币的时间价值两类方法。后者多采用“财务表法”(又叫“投资返回率法”),我 Correctly determining the benchmark investment benefit coefficient or the investment recovery period is of great significance for evaluating the economic effect of capital construction investment, comparing technological and economic aspects among the schemes and guiding economic construction onto the right track. In the past, we engaged in capital construction, we only talked about subjective needs, did not say objective conditions, talked about investment, did not talk about economic results, caused the capital construction investment to lapse indefinitely, or lost its investment after the construction project went into operation, so that its investment in the country was lost. Lessons learned are well worth it. Foreign countries attach great importance to the evaluation of the economic effects of investment and regard it as an important basis for considering the feasibility of industrial enterprises. How to evaluate the economic effects of the construction of industrial enterprises, the main use of “investment efficiency” of the comprehensive comparison of indicators. In the calculation of “investment efficiency,” generally divided into two kinds of methods to consider the time value of money and not consider the time value of money. The latter use more “financial table” (also known as “return on investment method”), I