为了分析双边市场中均衡市场结构的形成机理和影响因素,引入两阶段古诺博弈的方法构建了一个具有双边网络效应的均衡市场结构模型。通过模型分析发现均衡市场结构取决于平台的非网络性利益、双边网络效应强度以及产业内平台的数量。对于完全兼容的市场,各个平台会以相同的市场份额同时在市场中运营;而对于完全不兼容的市场,市场上地位不同的平台企业之间在规模上存在非常悬殊的差异。 In order to analyze the formation mechanism and influencing factors of the balanced market structure in the bilateral market, a two-stage Cournot game is introduced to construct a balanced market structure model with bilateral network effects. The model analysis shows that the equilibrium market structure depends on the non-network benefits of the platform, the strength of the bilateral network and the number of platforms in the industry. For a fully compatible market, each platform will operate in the market with the same market share at the same time. For totally incompatible markets, there are very large differences in the scale between platform companies with different positions in the market.