跨界污染情形下贸易自由化对均衡污染税及社会福利的影响

被引:1
作者
戚道安 [1 ]
李卫兵 [2 ]
机构
[1] 武汉理工大学经济学院
[2] 不详
关键词
贸易自由化; 跨界污染; 关税; 污染税; 社会福利;
D O I
10.19648/j.cnki.jhustss1980.2013.06.013
中图分类号
F741.2 [自由贸易与保护贸易]; F205 [资源、环境和生态管理];
学科分类号
120405 ; 020106 ;
摘要
本文构建了一个基于相互倾销贸易理论的两阶段双寡头模型,并考虑了两种形式的污染损害函数,分析了跨界污染情形下贸易自由化对均衡污染税以及社会福利的影响。本文的结果依赖于选定的污染损害函数的形式。在线性污染损害函数的情形下,贸易自由化会导致均衡污染税下降,并且社会福利与关税之间呈倒"U"形关系。在二次型污染损害函数的情形下,结果取决于污染跨界系数与污染损害系数的值:当污染损害系数足够小时,贸易自由化总会导致均衡污染税下降;当污染损害系数足够大时,贸易自由化总会导致均衡污染税提高。而当污染损害系数适中时,贸易自由化既可能导致污染税提高,也可能导致其下降,结果取决于污染跨界系数的值。
引用
收藏
页码:81 / 87
页数:7
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