本文从网络外部性理论角度出发，首先简要分析了我国电子支付产业的网络外部性特征和产业竞争格局。
First, a brief analysis of China's electronic payment industry, network externality features and patterns of industrial competition.
按照公共经济学的经济外部性理论，网络媒体的外部性问题分为正外部性和负外部性两个方面。
According to the economic externality theory in public economy, the economic externality in network media falls into two sides: positive externality and negative externality.
按照公共经济学的经济外部性理论，网络媒体的外部性问题分为正外部性和负外部性两个方面。
According to the economic externality theory in public economy, the economic externality in network media falls into two sides: positive externality and negative externality.
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