In addition, the effects of increasing pollution tax by the north country, improved technology of pollution-abatement, and cross-border pollution increase on the profit and social welfare are studied.
英
美
释义
文章并进一步研究在北国提高环保标准、污染防治技术进步与污染外溢效果加重等三种状况下,对南北两国与对本国的影响。
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