From the Angle of different parties of Internet Commerce, namely the seller, buyer and intermediary, the entry decision of each party and the competitive relationship are studied.

本文从卖方、买方和中介方等互联网商务参与主体的角度出发，研究了它们各自的参与决策及它们之间的竞争和博弈关系。

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State Administration for Industry and Commerce shall actively cooperate with other departments concerned to enhance the macro-management of the intermediary market of entry and exit.

国家工商行政管理局要积极配合有关部门工作，加强对出入境中介活动市场的宏观管理。

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If an intermediary is present, then the sale and purchase transaction is called electronic commerce such as eBay. com.

如有存在中介服务，则买卖交易就被称为电子商务，比如易趣网。

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