组内网络外部效应不对称的多寡头双边市场定价策略

Oligopolistic Pricing Strategy with Asymmetric Intra-group Network Externality in Two-sided Markets

构建了组间网络外部效应和正负不对称组内网络外部效应共同作用下的双边市场中多寡头平台企业竞争的Salop双环模型.结果表明:网络外部效应对平台企业定价的影响取决于双边用户接入平台后的市场结构.双边局部垄断时,平台利润与组间网络外部效应和组内网络外部效应成正相关关系;双边竞争时,平台利润与组间网络外部效应和组内网络外部效应无关;单边竞争时,平台利润与组间网络外部效应成反向关系,与组内网络外部效应的关系受平台数目的影响,平台数目太多时,平台企业需要对单边竞争市场结构下的竞争方进行补贴.

Oligopolistic competitive salop model with asymmetric intra-group network externality and inter-groupnetwork externality was build in two-sided markets. The profit of platform enterprise has a positive correlation withinter-externality and intra-externality in bilateral partial monopoly market,is irrelevant to inter-group networkexternality and intra-group network externality in bilateral partial competition market,and has a negative correlationwith both of them in unilateral competition market. The relationship between the profit of platform and intra-groupnetwork externality depends on the number of the platforms in unilateral competition market. When there are toomany platform enterprises,they should give subsidies to the competitor party.