The results show that the compatibility decisions of incumbents and the entry of competitive firm strongly depend on the strength degree of network externalities and the entry fixed cost 研究结果表明，在位企业之间的兼容性偏好以及进入企业对进入兼容性市场还是进入非兼容性市场都取决于网络外部性强度的大小和潜在进入企业的市场进入成本的大小。
