From the perspective of law-economics, intellectual property has its externalities which are caused by the conflict between private nature and social nature of knowledge.

在法经济学视野下，知识产权的外部性来源于知识的私有性和社会性之间的矛盾。

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But problem is that production brings not only private return to enterprise but also negative externalities to society, both of which affect the increase of social welfare.

但是，企业的生产不仅产生企业私人收益而且也可能带来外部不经济，这些都会影响社会福利的增长。

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If all of this works then what we are talking about is Amazon as a private company effectively taking on the traditional roles of a nation state: managing liquidity demand and internalizing externalities.

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