中国农产品出口增长的二元边际分析

Dual Margin of Agriculture Products Export Growth in China

利用联合国贸易发展会议数据库提供的中国农产品HS六位码出口数据,计算我国向所有贸易伙伴国出口的二元边际及价格指数与数量指数,进一步分析二元边际对我国农产品出口增长的贡献,并就我国向不同国家出口农产品质量差异作简要探讨。结果表明,我国农产品出口主要沿着集约边际方向增长,并且集约边际的贡献率逐年增大;此外,我国向农业生产率较高的国家出口质量相对较高的农产品;对农业规模较大的国家出口农产品逐渐由粗放型增长向集约型增长转变;农产品出口质量不断提高。

Based on China＇ s HS-6 digit level export data provided by UNCTD, the extensive and intensivemargins for each exporter was constructed along with their price and quantity index for Chinese total agricultureexports.The results show that China＇ s agricultural export growth is mainly achieved along the direction of theintensive margin,whose contribution rate is increasing annually.In addition,China exports agricultural productsof relatively high quality to the countries with high agricultural productivity.And China is transiting from quan-tity expansion to quality expansion in trading with countries with agriculture of larger scale, which means thatthe quality of agricultural exports is improving steadily.