本文研究我国参与南南合作过程中对与之贸易的其他发展中国家福利的影响。利用2005-2010年的发展中国家数据,运用FGLS方法来克服残差项自相关,得到了贸易与人均收入正向联系的结论。进一步考虑到内生性的问题,采用Frankel和Romer的地理工具变量,运用GMM方法对原模型重新估计,同样验证了以上结论。在此基础上,本文提出了相应的政策建议。 This article examines the impact of our participation in South-South cooperation on the welfare of other developing countries that trade with it. Using the data of developing countries from 2005 to 2010 and using the FGLS method to overcome the autocorrelation of the residuals, we get the conclusion that trade is positively connected with per capita income. Taking the endogeneity into account further, the above conclusions are also validated by using the geopolitical variables of Frankel and Romer and re-estimating the original model using the GMM method. On this basis, this paper put forward the corresponding policy recommendations.