【摘要】 20世纪70年代以来,随着高新技术的发展,社会日新月异的变化、技术革命的方兴未艾,网络越来越成为经济发展的"车轮"。进入网络经济和社会后,网络更成为经济研究的热点。深刻了解网络所独有的经济特征——外部性,将有助于分析相关经济现象。更多还原

【Abstract】 Since the 1970s the rapid development of high technology has led to increasing changes in human life. Recently networks, the progressing "wheels" that promote the development of economies, have become the focus of research. A profound insight into the economic feature of networks, namely its externality, contributes to better analysis of relevant economic phenomena.更多还原