Dual Equilibria and Discontinuous Response in Monopolistic Competition with Two Classes of Consumers
发现，当行业需求函数为凸时，垄断供应商可能出现两个局部利润最大值；将此模型扩展至有两类消费者的垄断竞争，分析了长期自由进入下的行业均衡及参数变化的不连续响应，并展示了双重均衡的可能性。
The possibility of a convex industry demand function's leading to two local profit maxima for a monopolist supplier is found to extend to a model of monopolistic competition where two classes of consumers are distinguished by their relative demand for the industry's products. A long-run, free-entry industry equilibrium is defined and discontinuous responses to changes in parameters are analyzed. Some applications are given and the existence of dual equilibria is shown to be a possibility.