An Empirical Examination of Export Variety: Regional Heterogeneity within a Nation
An Empirical Examination of Export Variety: Regional Heterogeneity within a Nation
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DOI：
10.1111/j.1467-9701.2010.01327.x
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发表时间：
2011-04
期刊：
影响因子：
--
通讯作者：
Yushi Yoshida
中科院分区：
文献类型：
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作者：
Yushi Yoshida
认识到类似的产品是在一个国家的不同次区域生产的，我们提供了一个国家出口品种扩张的新证据。我们将日本的国家出口分为41个都道府县次区域，涉及7，000多个产品类别，并构建了1988年至2005年的次区域出口利润率。首先，我们发现强有力的证据，区域异质性的出口产品覆盖率，和大多数地区的出口品种扩大在我们的样本期间。第二，我们发现，较大的次区域出口增长的60%以上是由于大幅度的利润，这与国际跨国研究的结果相似。这些研究结果意味着，占出口品种的新出口从一个国家内的次区域加强了广泛的利润率在出口增长的贡献。
Recognising that similar goods are produced in different subregions within a country, we offer new evidence of variety expansion in a nations exports. We divide Japanese national exports into 41 prefectural subregions with over 7,000 product categories and construct subregional export margins for the years between 1988 and 2005. First, we find strong evidence of regional heterogeneity in terms of export product coverage, and the export variety of most regions expands in our sample period. Second, we find that the extensive margin accounts for over 60 per cent of the increase in exports of larger subregions, similar to the findings in the international cross-country study. These findings imply that accounting for export variety in terms of new exports from subregions within a country strengthens the contribution of extensive margin in the growth of exports.