Trade and Global Pollution in Dynamic Oligopoly with Corporate Environmentalism

Trade and Global Pollution in Dynamic Oligopoly with Corporate Environmentalism
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企业环保主义动态寡头垄断中的贸易和全球污染

DOI:
10.1111/roie.12004
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发表时间:
2012
影响因子:
1
通讯作者:
Akihiko Yanase
Akihiko Yanase
中科院分区:
经济学4区
文献类型:
--
作者:
Tetsushi Murao;Makoto Nirel;M. Hori;李 鍾元;清水洋;李 鍾元;上垣彰;渡辺恵一;Akihiko Yanase

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本文研究了在动态寡头竞争中国际贸易的影响,其中全球污染的存量具有负福利效应,寡头的目标可能包括社会的污染损害以及私人利润。在企业数量、排放系数和企业环境意识相同的对称情况下,贸易开放在短期内无疑会提高两国的福利。然而,从长远来看,贸易增加了全球污染的存量,因此,开放贸易是否有益取决于经济参数。如果国与国之间存在不对称性,两国的短期贸易收益就不一定得到保证,因为贸易自由化可能会增加一国的产出,而减少另一国的产出。此外,自由贸易可能导致比自给自足下更低的污染存量。
This paper examines the effects of international trade in the presence of dynamic oligopolistic competition where the stock of global pollution has a negative welfare effect and the oligopolists' objectives may include society's pollution damage as well as private profits. In a symmetric case where the number of firms, emission coefficient, and firms' environmental consciousness are the same in two countries, an opening of trade unambiguously improves each country's welfare in the short run. In the long run, however, trade increases the stock of global pollution and hence, whether opening of trade is beneficial depends on the parameters of the economy. If there are asymmetries between countries, the short‐run gains from trade in both countries are not necessarily guaranteed, because trade liberalization may increase output in one country and reduce it in the other. Moreover, free trade may result in lower pollution stock than under autarky.
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