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“污染庇護所”之檢定-貿易自由化與環境管制之探討

Examining the Pollution Havens Hypothesis: An Evidence on Trade Liberalization and Environmental Regulations

摘要


貿易自由化使一個環境管制較爲嚴格的國家更專業於較爲乾淨產品的生產,且增加污染性較高產品的進口,並將污染性產業移到國外去生產,進而改善國內的環境品質。自1990年以降,台灣對外貿易逐漸開放,國內的產業結構和貿易型態產生了很大的改變,本文的主要目的是探討台灣的貿易自由化是否將污染性產業移轉至較爲落後國家生產,亦即檢定「污染庇護所假說」。本研究利用1991年至2003年期間台灣製造業二欄位產業別的panel data,分別以固定效果和隨機效果模型進行實證,藉以探討環境管制對貿易型態的影響。實證顯示環境管制越嚴格的產業其進口和淨進口比率均越高,顯示過去十多年來我國的產業結構已朝向較爲乾淨與污染性較低的型態。另外,在1990年代貿易管制逐漸減少,進口稅率的降低,高污染密集度產業的進口比率亦增加,不過這個「間接污染庇護所」效果並不顯著。我們進一步將各產業的進口來源區分成由OECD國家和由非OECD國家進口,發現不論是對OECD國家或對非OECD國家貿易,污染程度越高的產品其進口比率均較高,但只有在由非OECD國家進口方面的環境管制變數係數是顯著的。很顯然地,非OECD國家已經成爲台灣高污染性產品的庇護所,而且隨著貿易的自由化、進口稅率之降低,台灣由非OECD國家所淨進口高污染性產品的比率也越高,但由OECD國家所淨進口高污染性產品的比率卻是減少的,貿易自由化的污染庇護效果在不同的貿易對象產生不同的效果。

並列摘要


With trade liberalization, countries with strict environmental regulations can steer away from polluting industries and put greater emphasis on cleaner industries. They increase the import of the higher polluting products and move the polluting industry abroad, whereby improves their environmental quality. In this regard, Taiwan’s trade regulatory policy has been gradually opened since 1990 and its domestic industrial structure and trade pattern have been greatly changed. The main purpose of this paper is to examine whether Taiwan's polluting industries have been transferred to production in the less developed countries while Taiwan itself goes toward liberalized trade. This assumption has been called the pollution haven hypothesis. We use the 2-digit industry-level panel data of Taiwan’s manufacturing from 1991 to 2003 to study the effect of environmental regulation on trade patterns by regressing panel fixed and random environmental control the industries are under, the higher import portion they have. It shows that Taiwan's industrial structure has already moved toward the cleaner and lower polluting pattern in the last ten years. In addition, the import of polluting-intensive industries increased with the decreasing import tariff, yet this ”indirect pollution haven effect” is not significant. When we separate the import of each industry by OECD countries and non-OECD countries, it is significant that the polluting industries have higher import portion in the regression for the non-OECD countries. Obviously, the non-OECD countries have become the haven of Taiwan's high polluting industries. With the trade liberalized and the import tariff reduced, Taiwan increases the net import of the higher polluting products from the non-OECD countries, while decreasing that from OECD countries. And there are different outcomes for different Taiwan's trade partner in the effect of trade liberalization on pollution havens.

參考文獻


莊奕琦、李鈞元(2003)。如何衡量人力資本:理論與台灣實證。經濟論文叢刊。31(1),51-85。
Antweiler, W.,B. R. Copeland,M. Scott Taylor(2001).Is Free Trade Good for the Environment?.American Economic Review.91,877-908.
Balassa, B.,I. Adelman (ed.)(1979).Economic Growth and Resources.London:Macmillan.
Birdsall, N.,D. Wheeler(1993).Trade Policy and Industrial Pollution in Latin America: Where Are the Pollution Havens?.Journal of Environment & Development.2(1),137-149.
Brunnermeier, S. B.,A. Levinson(2004).Examining the Evidence on Environmental Regulations and Industry Location.Journal of Environment and Development.13(1),6-41.

被引用紀錄


鄭冠維(2011)。環境治理—以浙江省嘉興市的經濟成長、環境品質與環境管制為例〔碩士論文,國立臺灣大學〕。華藝線上圖書館。https://doi.org/10.6342%2fNTU.2011.10155

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