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Ju, Yiyi
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[Journal:] Journal of Economic Structures [ISSN:] 2193-2409 [Volume:] 6 [Year:] 2017 [Issue:] 27 [Pages:] 1-16
Due to its long-term negative health effects and increasing emissions, the PM2.5 issue has caused rising concerns in recent years. Although official media from East Asian countries tend to avoid blaming PM emission sources on their neighboring countries, researches have proved the existence of pronounced long-range trans-boundary particulate matters transported by nature force and by human activities. In this context, this paper included the structural path analysis (SPA) to quantify trans-boundary PM2.5 at sector level, track its transaction paths and figure out the linkages between consumption and production responsibilities of China, Japan and Korea. Based on the results and policy reviews of current environmental cooperation mechanisms, this paper found that: Considering the China-Japan and China-Korea trades, China's net exportation of embodied PM2.5 emissions has exceeded the importation rates over 10 times (CHN Ç JPN, 56.53 kt, JPN Ç CHN, 3.58 kt; CHN Ç KOR, 59.19 kt, KOR Ç CHN, 5.31 kt). Japan and Korea benefited from importing raw materials with high emission intensity from China to meet domestic consumption needs and keep a low national emission level. China, the largest emitter in the world, should first take the responsibility to mitigate its huge domestic PM2.5 emission. However, the relocated emissions from its neighboring countries should not be ignored. For Japan or Korea, due to the close economic interdependence and geographical position, any contribution to the reduction of the trans-boundary emissions or to the solution of atmosphere problems within China also helps those countries themselves. In the long run, all three countries would benefit from enhancing subregional environmental cooperation.
Trans-boundary air pollutants
PM2.5 embodied in the trade
Responsibility contribution
Regional environmental corporation
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