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运用贸易自由化指数、生产专业化程度指数以及空间计量方法对传统引力模型进行改进,并采用2012-2016年度数据分析了金砖国家间农产品出口贸易模式,探究贸易自由化和生产专业化程度对金砖国家不同类型农产品出口贸易影响机制的差异。研究结果表明:金砖国家间农产品出口贸易模式遵循相似需求理论,农产品出口贸易动力来源于相近收入形成的类似消费偏好;贸易自由化程度差异缩小将有效促进金砖国家间农产品出口贸易发展,且对植物产品、加工食品及烟酒饮料产品出口贸易推动效应最为显著;生产专业化程度与金砖国家间农产品出口贸易存在显著的引力效应。
The traditional gravitation model is improved by means of trade liberalization index, production specialization index and spatial measurement method. The model of export trade of agricultural products between BRIC countries is analyzed using the data of 2012-2016 to explore the effect of trade liberalization and production specialization Differences in the Impact Mechanism of Different Types of Agricultural Products Export Trade in BRIC Countries. The results show that the pattern of export trade of BRIC countries follows the similar demand theory. The driving force of export trade of agricultural products comes from the similar consumption preferences of similar income formation. The narrowing of the degree of trade liberalization will effectively promote the development of export trade of agricultural products between BRIC countries. The export trade promotion effect on plant products, processed foods and tobacco, alcohol and beverage products is the most obvious. The degree of production specialization has a significant gravitation effect on the export trade of agricultural products among BRICS countries.