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税收收入中性约束下最优环境税率研究
引用本文:李香菊,赵娜.税收收入中性约束下最优环境税率研究[J].财经理论与实践,2015(5):103-107.
作者姓名:李香菊  赵娜
作者单位:西安交通大学 经济与金融学院,陕西 西安,710061
基金项目:国家社科基金项目(14BJY168)
摘    要:通过构建完全垄断企业与政府的两阶段博弈模型,对政府如何制定最优环境税率,实现税收收入中性约束下社会福利最大化及企业利润最大化问题进行了分析。研究发现:在一定的条件下,环境税率和其他税率越高,企业产出水平和排污量越低;当政府的税收收入较少时,环境税率与排污的边际损害程度呈现倒 U 型;而当政府税收收入较高时,环境税率随着排污的边际损害程度的提高而增加。据此提出环境税改革的建议:一是采取有差别的环境税率;二是将污染物排放的边际损害控制在一定范围内;三是适时调整环境税税率,并同时辅之以相对应的配套改革措施。

关 键 词:税收  收入中性  环境税率  垄断企业

A Study on Optimal Environmental Tax Rate under the Revenue-Neutral Constraint
LI Xiangju,ZHAO Na.A Study on Optimal Environmental Tax Rate under the Revenue-Neutral Constraint[J].The Theory and Practice of Finance and Economics,2015(5):103-107.
Authors:LI Xiangju  ZHAO Na
Abstract:to social welfare maximization under the revenue-neutral constraint,and how to determine the en-The paper discusses on how to develop the optimal environmental tax to contribute terprise optimal output to satisfy their own profit maximization by building a two-stage game model of monopoly industry and the government.The results indicate:environmental tax rate and other tax rates were negatively related to enterprise output and abatement;When tax revenue is lower,the relationship of environmental tax rate and the degree of severity of environmental damage is inverted U-shaped.When tax revenue is higher,environmental tax rate has positive correlation with the degree of severity of environmental damage.Therefore,further adjustment and reform of the environmental tax policy must be carried out in three aspects:firstly,to imple-ment different environmental tax rate in different area;secondly,to control the severity degree of environmental damage in a certain scope;and thirdly,to adjust the environmental tax rate properly and to take some supplementary measures at the same time.
Keywords:Revenue-neutral  Environmental tax rate  Monopoly enterprise
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