完全信息条件下寡占产品市场中的环境税效应研究

Studies on Effects of Environmental Taxes under Oligopolistic Markets with Complete Information

本文研究了完全信息条件下环境税改革在寡占产品市场下的效应,分析了环境税对环境质量、经济增长以及社会福利的影响。结果表明:环境税改革在任何情况下都不能获得"增长双重红利",而在一定条件下可以获得"福利双重红利";但是,最优环境税在一定的技术分布条件下可能为负,环境税的实施也并不必然导致环境质量的改善,环境税的环境效应有赖于政府环保意识、寡头行业技术类型分布以及寡头企业相对地位。本文的研究将为具有寡占市场特征的我国国有垄断性行业的环境税改革提供政策建议。

This paper studies the effects of environmental tax reform on oligopoly markets with complete information by analyzing influences of environmental tax on environmental quality, economic growth and social welfare. There are several conclusions： First, under no condition can environmental tax reform gain ＂growth double dividend＂ while ＂welfare double dividend＂ can be achieved under some conditions; Second, optimal environmental tax may be negative under certain technology distribution conditions and the implementation of environmental tax does not inevitably lead to the improvement of environmental quality, which is dependent on the environmental awareness of the government, the technology type distribution of oligopoly industries and the relative position of oligopoly enterprises. The research in this paper will provide some policy implications for China＇s environmental tax reform in state-owned monopolistic industries.