Intra-industry trade between Japan and Korea : vertical intra-industry trade, fragmentation and export margins
Intra-industry trade between Japan and Korea : vertical intra-industry trade, fragmentation and export margins
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发表时间：
2008-08
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通讯作者：
Yushi Yoshida
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作者：
Yushi Yoshida
本文通过对韩日次区域间产业内贸易的实证研究，为现有的日韩国际贸易实证研究提供了新的证据。利用日本分地区的国际贸易数据，计算了1988年至2006年期间日本41个地区对韩国的Grubel-Lloyd产业内贸易指数。通过限制产业内贸易流向分区域，格鲁贝尔-劳埃德指数比基于国家一级的传统指数更有可能反映生产分散的影响。通过使用日本都道府县的国际贸易数据，可以发现，即使仅限于都道府县与韩国之间的贸易流动，产业内贸易仍然很普遍。在产业内贸易回归模型中，我们引入了地区出口的粗放型和集约型边际作为新的解释变量。我们发现，产业内贸易的上升是由于新的出口品种的引进，而产业内贸易则是由于已出口产品的贸易价值的增加而受到抑制。
This paper contributes to the existing empirical investigation of Japan-Korea international trade by providing new evidence of intra-industry trade between Korea and Japanese sub-regions. Taking advantage of a Japanese international trade dataset disaggregated by sub-regions, we calculate the Grubel-Lloyd intra-industry trade index for 41 regions of Japan with respect to Korea for the period between 1988 and 2006. By restricting the flows of intra-industry trade to sub-regions, the Grubel-Lloyd index is more likely to capture the effect of the fragmentation of production than the traditional index, which is based on the national level. By using Japanese prefecture international trade data, it is revealed that intra-industry trade is still pervasive even when it is restricted to trade flows between prefectures and Korea. In intra-industry trade regression models, we introduce extensive and intensive margins of prefecture exports as new explanatory variables. We find that a rise in intra-industry trade is driven by the introduction of a new variety of exports, while intra-industry trade is discouraged by an increase in the trade value of products already exported.