external economic theory 经济外部性理论 external economies of scale theory 外部规模经济 theory of external interdependence 外部依存理论 ..
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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.
外部性理论是现代经济学，特别是新制度经济学的重要理论之一。
The externality theory is one of the most important theories in contemporary economics, particularly in the new institutional economics.
本外部性理论是解释经济活动与森林生态环境问题的基础理论。
The externality theory is a basic theory of explaining economy activities and forest ecological environment problems.
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