Giffen商品存在性分析

An Analysis of the Existence of Giffen's Commodities

本文对消费者行为做出基本假设与需求函数的推导分析。研究发现,很难确定当效用函数满足什么条件时能够确保在任何价格水平下所有商品都不是Giffen商品。需求定律被普遍接受,但难以从理论上严格证明其成立,故而经济学界也认可Giffen商品是可能存在的。

Through the analysis of the basic assumptions and demand functions of consumer behavior,it is found that it is difficult to determine what conditions the utility function need to satisfy to ensure that all goods are not Giffen at any price level. The law of demand is universally accepted,but it is difficult to prove it strictly in theory,and it is possible to exit for Giffen＇s commodities.