A concrete case improved Bertrand double oligarchs model is discussed by using the methods of this paper in the example, and successfully explains the phenomena of following and no following in price war.

• 在实例分析中，运用本文所得到的方法，对改进的Bertrand双寡头博弈模型进行了讨论，解释了现实生活中关于价格战的跟进与不跟进现象。