传统的折断的需求曲线模型 ,没有明确假设厂商之间的信息不对称 ,仅仅讨论了厂商之间的简单定价反应行为。模型在当代的一个扩展 ,明确假设了在顾客与厂商之间信息分布不对称 ,探讨了他们对于价格变动的反应不对称行为的各异性和粘性价格的成因 ,将微观模型的问题域从寡头市场扩展至垄断竞争市场。模型在当代的又一个扩展 ,揭示了具有最大化动机和理性预期的行为人之间的博弈 ,会引发微观价格粘性 ,进而集结为宏观价格水平粘性 ,使得总体市场难以出清 ,因此政府的适度调控有必要 The traditional broken demand curve model does not explicitly assume the asymmetric information between vendors, but merely discusses the simple pricing reaction behavior among vendors. An extension of the model in the present era explicitly assumes the asymmetric distribution of information between customers and firms, discusses the causes of their anisotropic and sticky price response to price changes, and discusses the problem domain of the microscopic model from oligarchic markets Expand to the monopolistic competition market. The expansion of the model in the present era reveals that the game between actors with maximized motivation and rational expectation will trigger the stickiness of the micro price and then build it into a sticky macroeconomic price level, making the overall market difficult to find out. Therefore, the government’s moderation Regulation is necessary