NO.PZ2016010801000041
问题如下:
Which of the following regarding a kinked demand curve model is least accurate?
选项:
A.
Oligopolistic firm can maximize its profit at the kinked price.
B.
It is a traditional model of oligopoly.
C.
The price above kink is less elastic than price below the kink.
解释:
C is correct. In a kinked demand curve model, the firm will face a demand curve that is flatter above the kinked price than below the kinked price. A flatter demand means more elastic.
考点:需求弯折曲线模型
解析:在该模型上,弯折处的点可以使得企业获得最大收益,因为该点上方的需求曲线更具弹性,提价会导致更多的需求量下降从而减少总收入。而该点下方的需求曲线缺乏弹性,降价不会增长很多需求量,这也会导致总收入减少。A选项不入选。
该模型是传统垄断寡头模型中的一种,所以B选项不入选。
这点上方的曲线部分比下方的曲线部分更具弹性,所以C选项入选。
还是不明白,为什么折点是利润最大化的点?