产业内贸易对中国农产品贸易影响的实证研究

文章以农产品产业内贸易为研究对象，利用G|L指数，从分类和行业两个角度，对中国农产品产业内贸易的发展程度进行了评估。研究发现：虽然现阶段，中国农产品贸易仍然以由资源禀赋所主导的产业间贸易方式为主，但在某些农产品的贸易中，产业内贸易方式已经上升到了主要地位，并且未来有继续增长的趋势。进一步地，考虑产业内贸易的特殊性，建立中国农产品进、出口联立方程组模型进行实证分析，结果表明：农产品产业内贸易客观存在，并且其有助于促进中国农产品贸易的增长。因此，发展纵向一体化合作，力求在产品差异化竞争中取胜，是刺激产业内贸易增长，进而扩大农产品贸易规模的有效途径。

Empirical Research on the Influence of Intra-industry Trade on Agricultural Products Trade in China

Based on the G-L index, this paper analyzes and evaluates the intra-industry trade of agricultural products from the perspective of classification and industry, respectively. We find that, although most current agricultural product trades are endowments-dominated inter-industry trade, intra-industry trade is also becoming increasingly important, at least among certain agricultural products. Considering the specialty of intra-industry trade, we do empirical research by adopting simultaneous equations that include both the import and export of agricultural products. The results show that, the intra-industry trade of agricultural products exists, and it helps to improve the development of agricultural product trades. Our findings suggest that, in order to improve the development of agricultural product intra-industry trade, it is necessary to enhance vertical industrial cooperation and the product differentiation.