NO.PZ2018062003000072
问题如下：
In Kinked Demand Curve model , the demand curve is most likely to be:
选项：
A. kinked.
B. horizontal.
C. vertical.
解释：
A is correct
In Kinked Demand Curve model which is a type of oligopoly, each firm believes that if it raises its price, others will not follow, but if it cuts its price, others will cut theirs. A kinked demand curve occurs as a result.
考点：弯折曲线模型
解析：弯折曲线模型的需求曲线是弯折的。曲线上半部分意味着当厂商提价时候，其他厂商不予参与，所以曲线弹性较大，比较平坦。而曲线下半部分意味着厂商降价时候，其他厂商纷纷参与降价，所以曲线弹性较小，比较陡峭。
请问弯折需求曲线图形是如何的？可以针对图形稍作解释吗？
