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根据“结构-行为-绩效”的SCP分析框架,分析了企业在多寡头产量竞争的Cournot市场结构、多寡头价格竞争的Bertrand市场结构、1个领先者和多个追随者的Stackberg市场结构下,分别采取自主创新、跟踪新产品开发和引进模仿等不同的产品开发战略的市场绩效.结果表明,在同质产品多寡头市场上的产量竞争中,企业采取领先者、竞争者和追随者3种行为的企业均衡产量和企业利润依次递减;多寡头Stackberg市场结构在总产量、消费者剩余和社会福利上表现更佳;多寡头Cournot市场结构在市场价格和行业总利润上更高.在异质产品多寡头市场上的Bertrand价格竞争中,互补品市场的均衡价格和均衡产量相对于替代品都提高;当替代程度较大时,寡头数目较少,同时每个寡头的均衡产量和均衡价格都上升.
Based on SCP analysis framework of “structure-behavior-performance”, this paper analyzes the structure of Cournot market, multi-oligopoly price competition Bertrand market structure, stack leader market structure of one leader and many followers , Respectively, to take independent innovation, tracking new product development and introduction of imitation and other different product development strategies of market performance.The results show that in the homogeneous product market oligopoly competition, the company take the leader, competitors and followers The equilibrium output of the three kinds of firms and the profits of the enterprises decrease in sequence; the oligopoly Stackberg market structure performs better on total output, consumer surplus and social welfare; the oligarchy Cournot market structure is higher in market price and total industry profit. In the Bertrand price competition in the multi-oligopoly market with heterogeneous products, the equilibrium price and the equilibrium output of the complementary market increase relative to the alternatives. When the degree of substitution is larger, the oligopoly number is smaller and the equilibrium output and equilibrium of each oligopoly Prices have risen.