The impact of source diversification on soybean's import prices of China
[Objective]Explore the logical relationship between the diversification of import sources and soybean import prices is crucial for scientifically implementing soybean import diversification strategies and ensuring the stable domestic soybean supply in China.[Methods]Based on the monthly soybean import data of China from 2007 to 2021,this study adopted the individual-time fixed effects model to examine the impact of import source diversification on China's soybean import prices and its heterogeneity.[Results](1)The diversification of import sources contributed to reducing soybean import prices.The findings were validated through tests for endogeneity and robustness.(2)The impact of import source diversification on soybean import prices varied significantly among countries with different import shares.Import source diversification significantly lowered the prices of soybeans imported from countries with a high share of imports,but had a negligible effect on soybean import prices from countries with a low share of imports.(3)The impact of import source diversification on China's soybean import prices varies depending on the period of global food price volatility.In the period characterized by high global food price volatility from 2007 to 2013,the effect of import source diversification on China's soybean import prices was less pronounced.Conversely,during the relatively stable period of global food prices from 2014 to 2021,diversification of import sources significantly reduced China's soybean import prices.[Conclusion]Therefore,it is imperative to further refine the strategy of import diversification to ensure China's food security,while also considering the differentiated effects of import diversification across different countries and time periods.