21世纪海上丝绸之路共建国家水产品贸易网络特征及影响因素研究

Research on the Characteristics and Influencing Factors of Aquatic Product Trade Networks Built by the Maritime Silk Road in the 21st Century

21世纪海上丝绸之路共建国家是全球重要的水产品贸易市场。选取2011-2020年海上丝绸之路共建国家水产品贸易数据,运用社会网络分析法对共建国家水产品贸易网络特征及影响因素进行分析。结果显示:共建国家间贸易联系日益紧密,水产品贸易网络密度和互惠度均处于较高水平,且呈增长态势,冻鱼和甲壳类动物贸易态势较好;水产品贸易网络具有“核心—半边缘—边缘”的结构特征,位于核心区的中国、新加坡等国与沿线其他国家水产品贸易联系活跃,对共建国家水产品贸易具有明显促进作用;中国、新加坡和印度尼西亚等国居于水产品贸易网络的核心位置,且占据较多的结构洞,对沿线其他国家的影响力和控制力逐步增强;经济发展水平差异、人口规模差异以及陆地是否相邻对共建国家水产品贸易联系具有正向影响,地理距离对共建国家水产品贸易具有明显负向影响。

The countries jointly building the 21st Century Maritime Silk Road are important aquatic products trade markets in the world.In this paper,the aquatic product trade data of countries jointly building the Maritime Silk Road from 2011 to 2020 are selected,and the characteristics and influencing factors of aquatic product trade networks of countries jointly building the Route are analyzed by using the social network analysis method.The results show that the trade links between countries jointly building the Route are becoming increasingly close,the density and reciprocity of aquatic product trade networks are at a high level and showing an increasing trend,while the trade trend of frozen fish and crustaceans is better.The aquatic products trade network has the structural characteristics of"core-semi-edge-edge",where countries such as China,Singapore,located in the core area,have active aquatic product trade links with other countries jointly building the route,significantly promoting the trade of aquatic products among these countries.China,Singapore,and Indonesia occupy the core of the aquatic products trade network and hold more structural holes,gradually enhancing their influence and control over other countries jointly building the route.Differences in the level of economic development,population size,and whether the land is adjacent have a positive impact on the aquatic product trade links of the countries jointly building the route,whilegeographical distance has a significant negative impact on the trade of aquatic products in countries jointly building the route.