论文在利用投入产出表计算出大农业及其细分行业各类要素消耗系数的基础上,运用HOV模型测算出1992-2012年入世前后十年左右时间我国农产品及其细分类农产品的贸易要素含量,然后进一步采用劳伦斯指数和收益性结构指数对农产品贸易结构及其变化进行定量评价,最终从贸易要素含量和贸易结构变化两个角度对入世前后十年的农产品贸易状况进行比较和实证。研究结论认为,我国在进口大量农产品的同时,也进口了大量农业资源;"入世"对我国农产品贸易产生了较为明显的影响和冲击;农产品贸易要素含量状况基本上反映了我国的农业资源禀赋和比较优势格局,但这一格局正面临着极大挑战,农产品贸易结构亟须优化和调整升级。
This paper uses input- output table to calculate each factor's consumption coefficient of agriculture and its industry segments,and on this basis,the paper applies HOV model to calculate the factor content of trade of China's agricultural products and the sub- classified products from 1992 to 2012 around China's entry into WTO. Then,the Laurence index and structure optimization index are employed to analyze the agricultural trade structure and its changes. At last,comparison and empirical analysis are made to analyze the agricultural trade status from the perspective of trade factor content and trade structure changes during ten years around China's entry into WTO. The conclusions of this paper are as follows: China has imported a large quantity of agricultural products,but at the same time,China does have imported large quantities of agricultural resources; The accession to WTO obviously has influenced the agricultural trade of China; the trade factor content of agricultural products also reflects the agricultural resource endowment and comparative advantage pattern in China,but this pattern has been facing big challenges,and the agricultural trade structure needs to be optimized and upgraded urgently.