外部效应导致资源配置的效率低下,庇古和科斯分别提出了解决办法。庇古方法强调政府调节,运用税收和补贴手段,科斯方法强调市场机制,运用产权界定和产权交易手段。两种方法在思考方式、理论依据、产权强调、外部效应的范围等方面有区别,在市场激励、适用条件、实施效果、实用范围等方面具有一定程度的一致性。 External effects lead to inefficient allocation of resources, Pigou and Coase were proposed solutions. Pigou’s method emphasizes the government regulation, the use of tax and subsidies, Coase method emphasizes the market mechanism, the use of property rights and property rights exchange means. The two methods differ in their ways of thinking, theoretical basis, emphasis on property rights, scope of external effects and so on, and they have a certain degree of consistency in terms of market incentives, applicable conditions, implementation effects and practical scope.