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在寡头垄断市场的定价问题上伯特兰德模型的应用并不少见,但其理论中的线性需求函数和同质产品的前提假设对分析和解决实际经济问题的指导意义不大。本文通过建立非线性需求函数,并结合伯特兰德模型理论原理,分别从同质产品和差别产品两个角度分析寡头垄断市场上厂商的竞价策略,使之更贴合实际,从而在运用伯特兰德模型分析价格作为决策变量的寡头垄断市场的有效性进行了优化,使其现实指导意义更强。
The use of the Bertrand model is not uncommon in the pricing of oligopolistic markets, but the linear demand function in the theory and the assumptions of homogenous products have little significance in guiding and analyzing practical economic problems. By establishing nonlinear demand function and combining with Bertrand’s theory, this paper analyzes the bidding strategies of firms in the oligopolistic market from the perspectives of homogeneous products and differentiated products so as to make them more in line with the actual conditions. Therefore, Trump model optimizes the effectiveness of the oligopoly market to analyze the price as a decision variable, making it more practical and guiding.