问题 单项选择题

An analyst does research about market structures. With respect to traditional oligopoly model, which of the following is least accurate The kinked demand curve model assumes:

A. that there is a break in the marginal revenue curve.
B. that the price decreases by one firm is followed by its peers.
C. that the price and quantity are sensitive to small cost changes.

答案

参考答案:C

解析: 弯曲的需求曲线是在寡头垄断的情况下,造成有两条需求线和两条边际收益线的情形,上面一条需求线弹性比较大,因为该理论假没每个寡头公司认为,如果他提高价格,其他人并不会跟随,所以他的需求量会大幅度下降;下面一条需求线弹性比较小,因为该理论假设每个寡头公司认为,如果他降低价格,其他公司也会跟随着降低价格,所以他的需求量上升幅度比较小。两条需求线所决定的两条边际收益线中间有断开,并不是连续的。两条需求线的交点决定了最优的价格和产量,只有边际成本与两条边际收益线相交的情况下,公司才会改变他们的最优价格和产量,所以价格和产量对于成本较小的变化十分敏感这句话是错误的。

选择题
填空题