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題名 WTO新回合談判下關稅級距的最適調整:以台灣農業為例
其他題名 Optimal Tariff Escalation in the Doha Round of WTO: The Case of Taiwan`s Agriculture Industries
作者 翁永和;陳坤銘;郭炳伸
Weng,Yung-Ho;Chen,Kun-Ming;Kuo,Biing-Shen
貢獻者 國貿系
關鍵詞 最適關稅級距;WTO新回合談判;可計算一般均衡;農畜產品;食品加工業
optimal tariff escalation;WTO Doha Round;computable general equilibrium;agriculture industries
日期 2005-10
上傳時間 24-Oct-2014 17:18:30 (UTC+8)
摘要 關稅隨著進口品之加工層次提昇其稅率也越高的現象,即所謂關稅調升(tariff escalation)。此一現象普遍存在於已開發以及開發中國家。在WTO新回合談判過程中,部份國家提案要求降低原料與成品之間的進口關稅級距,本文之目的即在於探討降低關稅級距之經濟效果。本文首先建立一理論模型,由理論結果顯示,最適關稅級距決定於兩國既有之原料與成品之加工成本以及進自關稅水準之高低。此外,當進口國既有之關稅稅率足夠高且其產業越有競爭力時,該進口國應當建議WTO所有會員國調降原料與成品關稅,此時將導致該國之福利水準上升的可能性越大。反之,當該國既有之關稅稅率相對較低時,則原料與成品關稅之調整對該國福利水準的影響方向便無法確定。最後,本文應用一多國多部門之一般均衡模型,模擬分析各國調降關稅級距對台灣經濟之影響。由模擬結果顯示,整體而言,各國調降關稅級距對台灣之社會福利有正面影響,惟對大部份農畜產品與食品加工業之生產將造成一些不利影響。
It is a prevailing phenomenon in developed countries and developing countries that tariff rates of commodities are increased following their processing stages, known as ”tariff escalation”. This paper investigates the economic impact of reducing the degree of tariff escalation. First, a theoretical model is constructed to examine the optimal degree of tariff escalation. It shows that the optimal degree depends on relative tariff levels and marginal production costs between exporting and importing countries. The lower the marginal production costs in the importing country, the more likely it is that a decrease in tariff escalation may increase the country`s welfare if its initial tariff levels are high enough. However, the optimal degree of tariff escalation of the importing country is indeterminate if the initial tariff levels are not high enough. Second, a computable general equilibrium model is utilized to evaluate the effects of lowering the degree of tariff escalation on Taiwan`s economy. The results reveal that lowering the degree of tariff escalation, as proposed in the WTO Doha Round, might enhance Taiwan`s social welfare, but it may lower production levels in most of Taiwan`s agriculture, poultry and processed food industries.
關聯 人文及社會科學集刊,17(4),823-852
資料類型 article
dc.contributor 國貿系en_US
dc.creator (作者) 翁永和;陳坤銘;郭炳伸zh_TW
dc.creator (作者) Weng,Yung-Ho;Chen,Kun-Ming;Kuo,Biing-Shenen_US
dc.date (日期) 2005-10en_US
dc.date.accessioned 24-Oct-2014 17:18:30 (UTC+8)-
dc.date.available 24-Oct-2014 17:18:30 (UTC+8)-
dc.date.issued (上傳時間) 24-Oct-2014 17:18:30 (UTC+8)-
dc.identifier.uri (URI) http://nccur.lib.nccu.edu.tw/handle/140.119/70775-
dc.description.abstract (摘要) 關稅隨著進口品之加工層次提昇其稅率也越高的現象,即所謂關稅調升(tariff escalation)。此一現象普遍存在於已開發以及開發中國家。在WTO新回合談判過程中,部份國家提案要求降低原料與成品之間的進口關稅級距,本文之目的即在於探討降低關稅級距之經濟效果。本文首先建立一理論模型,由理論結果顯示,最適關稅級距決定於兩國既有之原料與成品之加工成本以及進自關稅水準之高低。此外,當進口國既有之關稅稅率足夠高且其產業越有競爭力時,該進口國應當建議WTO所有會員國調降原料與成品關稅,此時將導致該國之福利水準上升的可能性越大。反之,當該國既有之關稅稅率相對較低時,則原料與成品關稅之調整對該國福利水準的影響方向便無法確定。最後,本文應用一多國多部門之一般均衡模型,模擬分析各國調降關稅級距對台灣經濟之影響。由模擬結果顯示,整體而言,各國調降關稅級距對台灣之社會福利有正面影響,惟對大部份農畜產品與食品加工業之生產將造成一些不利影響。en_US
dc.description.abstract (摘要) It is a prevailing phenomenon in developed countries and developing countries that tariff rates of commodities are increased following their processing stages, known as ”tariff escalation”. This paper investigates the economic impact of reducing the degree of tariff escalation. First, a theoretical model is constructed to examine the optimal degree of tariff escalation. It shows that the optimal degree depends on relative tariff levels and marginal production costs between exporting and importing countries. The lower the marginal production costs in the importing country, the more likely it is that a decrease in tariff escalation may increase the country`s welfare if its initial tariff levels are high enough. However, the optimal degree of tariff escalation of the importing country is indeterminate if the initial tariff levels are not high enough. Second, a computable general equilibrium model is utilized to evaluate the effects of lowering the degree of tariff escalation on Taiwan`s economy. The results reveal that lowering the degree of tariff escalation, as proposed in the WTO Doha Round, might enhance Taiwan`s social welfare, but it may lower production levels in most of Taiwan`s agriculture, poultry and processed food industries.en_US
dc.format.extent 3073830 bytes-
dc.format.mimetype application/pdf-
dc.language.iso en_US-
dc.relation (關聯) 人文及社會科學集刊,17(4),823-852en_US
dc.subject (關鍵詞) 最適關稅級距;WTO新回合談判;可計算一般均衡;農畜產品;食品加工業en_US
dc.subject (關鍵詞) optimal tariff escalation;WTO Doha Round;computable general equilibrium;agriculture industriesen_US
dc.title (題名) WTO新回合談判下關稅級距的最適調整:以台灣農業為例en_US
dc.title.alternative (其他題名) Optimal Tariff Escalation in the Doha Round of WTO: The Case of Taiwan`s Agriculture Industriesen_US
dc.type (資料類型) articleen