边际分析法的基本思想是研究分析总体(或总量)以外的部分对总体(或总量)的影响,即研究额外增加的部分,增加到什么时候.总体(或总量)达到最佳状态.边际分析法从不断超越现在的角度去分析研究问题,体现了一种向前看的思想,它适用于一切经济决策. The basic idea of ​​the method of marginal analysis is to study and analyze the impact on the population (or the total amount) of the part other than the total (or the total amount), that is, when the additional part is studied and when the total amount (or the total amount) The marginal analysis method analyzes the research question continuously from the present point of view, embodies a forward thinking, which is applicable to all economic decisions.