计算期的确定对项目经济效益测算的影响

项目计算期由建设期、闲置期、生产期三部分组成，它们的变化都将对项目的经济效益产生较大影响。通过实际案例说明，不慎重确定项目的计算期，既可能错失良机，又可能造成投资失误，因此计算期是做好项目经济效益测算的重要基础。

Influence of Determining Giving Period on Estimation of Economic Benefit of Project

The given period of a project consists of three phases, i.e. construction phase, idle phase, and production phase, and all of variations in these three phases will have biggish influences on the economic benefit of project. Actual cases show that the indiscretion in determining given period of a project may result in not only the loss of golden chances, but also the wrong investment. Therefore, the determination of given period is an important base for the estimation of economic benefit of project.