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采用Hummels的估算垂直专业化比率的方法,运用中国2002~2011年的投入-产出数据,以及联合国商品贸易统计署的进出口数据,对中日工业部门的产品内贸易水平进行分年度分行业的计算。结论显示:两国间的产品内贸易水平呈现先升后降的趋势,技术密集行业的产品内贸易程度相对较高。这表明两国间的产品内贸易程度有很大的提升空间,我国对日本中间产品的进口依存度逐渐下降,可以采取一些有针对性的措施来促进两国产品内贸易水平的提高。
Using Hummels’ method of estimating the vertical specialization ratio, using the input-output data from 2002 to 2011 in China and the import and export data of UN Comtrade, the level of intra-product trade in the industrial sector of China and Japan is divided into three sub-industries Calculation. The conclusion shows that the intra-product trade between the two countries shows a trend of first increasing and then decreasing. Intra-product trade in technology-intensive industries is relatively high. This shows that there is room for greater intra-product trade between the two countries. China’s import dependence on Japanese intermediate products is gradually declining. Some targeted measures can be taken to promote the improvement of intra-product trade between the two countries.