中文摘要：

进口价格对进口市场结构变动的反应，决定了国内大豆价格水平及我国对大豆进口来源的战略选择。运用SVAR模型，分析了巴西和阿根廷等南美市场的兴起对我国大豆进口价格的影响。研究结果表明，我国大豆进口市场中南美市场份额的提高有助于降低我国大豆进口价格水平，且南美市场份额的变动对我国大豆进口价格变动的贡献度为2％左右。2001-2012年间，南美市场的兴起约为我国节省了280亿元的大豆进口成本。

英文摘要：

The reaction of import price to structure changes of import market determined the price level ot domestic soybean and the strategy choice of Chinese soybean import source. The impact of rise of South American market（ Brazil and Argentina） on import price of Chinese soybean was analyzed through SVAR model. The results showed that the increase of market share in South America in Chinese soybean import market was helpful to reduce the import price of Chinese soybean, and the contribution from changes of market share in South America to the import price of Chinese soybean was about 2%. From 2001 to 2012 ,the rise of South American market saved twenty- eight billion yuan for Chinese soybean import.