需求价格弹性与需求曲线斜率的关系释疑

Exploration on Relation between Price Elasticity of Demand and Slope of Demand Curve

本文从需求价格弹性的概念及辩析入手,通过检索各种经济学教科书对关于需求价格弹性与斜率的关系的观点作出总结 然后从两者关系中引出一个问题———"按同一比例绘制的两条需求曲线的价格弹性的大小取决于什么?与这两条需求曲线的斜率是否有关?"并寻求出解决的方法。

Starting from the concept of price elasticity of demand, this study made a texbook review on relation between price elasticity of demand and slope, and developed a problem: what determines the price elasticity of demand of two demand curves drawn by same proportion? And is there any relevance between these two demand curves? This study explored a solution and obtained some interesting conclusions and deductions.