Hicks、Slutsky、Samuelson需求曲线之比较

The comparison between Hicks, Slutsky and Samuelson demand curves

通过数量分析求出Hicks、Samuelson需求曲线的代数表示式子 ,从替代效应、价格效果处理方式、斜率、需求价格弹性四个方面 ,对Hicks、Slutsky、Samuelson需求曲线进行比较。在相同初始价格以及相同价格变动的情况下 ,由于各自价格效果处理方法不同 ,Hicks的替代效应小于Slutsky的替代效应 ,Samuelson的替代效应与Slutsky的替代效应相同 ;Hicks需求曲线斜率最大 ,Slutsky需求曲线次之 ,Samuelson需求曲线的斜率最小 ;Samuelson需求曲线的需求价格弹性最大 ,Slutsky需求曲线次之 。

The authors of this article calculate Slutsky and Samuelson demand curves and compare the sameness and difference between Hicks, Slutsky and Samuelson demand curves. They draw a conclusion: under the condition of the same price and the same price change, the replacement effect of Hicks is less than that of Slutsky and the replacement of Samuelson is the same as that of Slutsky; the slope of Samuelson demand curve is the smallest, the slope of Slutsky demand curve is bigger than that of Samuelson demand curve's and the slope of Hicks demand curve is the biggest; Hicks′ demand price elasticity is the smallest, Slutsky′s demand price elasticity is bigger than that of Hicks' and Samuelson demand price elasticity is the biggest.