经济与管理Issue(10)：88-91,4.
市场结构、环境税与福利效应分析
An Analysis on the Market Structure, Environmental Taxes and Welfare Effects
摘要
Abstract
the outside world and Border Security Research Center, Yunnan Chinese Language and culture College, Kunming 650092, China) This paper analysis the effects of environmental tax on the social welfare under the conditions of perfectly competitive market and monopolistic market, using Short-term partial equilibrium analysis method. We find, in the perfectly competitive market, imposing environmental tax on enterprises can improve social welfare. But social welfare has uncertainty in the monopolistic market and it is up to the distortion of monopoly. We can sure that environmental tax can improve the social welfare if the distortion of monopoly slight. From the analysis, we can draw a conclusion that we can't make an optimal choice between environmental tax and social welfare in the monopolistic market. As we all know, imposing environmental tax on enterprises can decrease contamination but also decrease enterprise's output, and so decrease social welfare. We finally have only a sub-optimal choice that in the monopolistic market, we choose a sub-optimal environmental tax lower than that in the perfectly competitive market.关键词
完全竞争/垄断/环境税/福利效应Key words
perfectly competitive market/monopoly/environmental tax/welfare effects分类
管理科学引用本文复制引用
李正升..市场结构、环境税与福利效应分析[J].经济与管理,2012,(10):88-91,4.基金项目
教育部人文社会科学研究一般项目(12XJC790008) （12XJC790008）
云南省应用基础研究面上项目(2011FZ085) （2011FZ085）
