【摘要】 现代西方经济学把外部性作为重要的研究范畴，认为它是市场缺陷的基本表现之一。现代市场经济条件下，政府具有保护环境和纠正市场偏差的功能。发达国家重视对市场外部性的公共治理，获得良好的社会效果。文章指出，在中国社会经济发展过程中，应根据社会经济发展规律，充分发挥政府作用，解决外部不经济问题。更多还原

【Abstract】 Western economics takes market externality as an important field of study and regards it as one of the basic phenomena of market defect. In the society of modern market economy, the government should have the functions of protecting environment and correcting market deviations. Developed countries pay great attention to the tackling of externality and have produced a good social effect. This article suggests that Chinese government, in the course of developing socialist market economy and on the basis of the developing law of social economy, should fully play its role in solving external uneconomic problem.更多还原