我国粮食进口贸易是否存在“大国效应”--基于大豆进口市场势力的分析

Does Large Country Effect Exist in the Import of China's Grain Trade: An Empirical Analysis Based on the Market Power of Soybeans Import

为检验我国粮食进口贸易是否存在"大国效应",本文以大豆为例采用面板数据并利用基于进口商行为的PTM模型对我国粮食进口贸易的市场势力进行了测算。研究表明,我国大豆进口不存在市场势力,即"大国效应"尚未显现,这与我国大豆进口占世界较大份额的地位并不相符;金融危机和"大豆风波"都对我国大豆进口产生了显著的负向影响,而"大豆风波"的影响相对较大。

To test whether large country effect exists in the import of China’s grain trade,this article tests the market power of soybeans import using the PTM model based on the conducts of importers.The results show that there is no market power in China’s import of soybeans,so the large country effect has not come up yet which is not suitable with the status of large soybeans import of China.Another conclusion is that both financial crisis and 'soybeans storm'affect soybeans import a lot,but the soybeans storm seems affects more.Finally,this article gives out some reasons and suggestions on the lack of market power in soybeans import.