The elasticity of substitution is a useful concept in several areas of economics . 置换弹性在若干经济学领域内是一个有用的概念。
By the amended ‘ alternative hypothesis ’ model , the article proves that excess sensitively coefficient equates to the income of the short - looking consumer accounts for the gross income . at the same time , it proves that the intertemporal elasticity of substitution of the china is near zero 并且通过两个修正后的“二分”储蓄模型证明了:在短视型居民的边际消费倾向为1的假设下,过度敏感性系数等同于短视型消费者收入占总收入的比重。
Elasticity of substitution is the elasticity of the ratio of two inputs to a production (or utility) function with respect to the ratio of their marginal products (or utilities).Sydsaeter, Knut and Hammond, Peter, Mathematics for Economic Analysis, Prentice Hall, 1995, pages 561-562.