The paper analyzes an extended Hotelling model with network externalities, and carries out the research on the impacts that network externalities put on competition tactics of companies.

本文将网络外部性同顾客选择与产品差异化理论结合，通过构建扩展的豪泰林模型研究了网络外部性对市场绩效与企业竞争策略的影响。

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Network externalities is found to be very distinct in it industry. Since network externalities will affect product differentiation, it will affect market conduct ultimately.

有关研究表明IT产业中存在显著的网络外部性，网络外部性的存在影响了产品的差异化程度，因此必然会影响企业市场行为。

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Network externalities are all fine and good to ignore so long as they mainly apply to the sharing of news and pics from a weekend trip with college friends.

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