文章构建了一个三阶段博弈模型研究了面对潜在竞争企业的进入威胁时，在位企业之间的兼容性决策问题。

In this paper we study incumbent firms' compatibility strategies when market entry of competitive firm may occur by using a three-stage game theory model with network externalities.

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第一个模型为期房销售中房地产开发商与消费者的信号博弈模型，分析了允许房屋预售情况下，消费者购买期房时无法完全了解房屋的质量和潜在的其它问题。

The first one is the signaling game model between developers and consumers. When pre-selling system is allowed, the buyers haven't complete information about the pre-completion buildings.

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