全球生物医药产品贸易网络结构特征与中国地位演变
Structural characteristics of the global trade network of biomedical products and the evolution of China's position
张梅 1孙烨懿 1梁双陆2
作者信息
- 1. 贵州财经大学应用经济学院,贵阳 550025
- 2. 云南大学经济学院,昆明 650504
- 折叠
摘要
随着各国生物医药产业的快速发展,全球生物医药产品贸易日趋活跃.基于2000-2020年联合国商品贸易统计数据库中的生物医药产品贸易数据,运用社会网络分析法揭示全球生物医药产品贸易网络结构特征及中国在其中的地位演变趋势.研究表明:①全球生物医药产品贸易网络联系紧密,贸易网络结构相对稳定,并具有"小世界"网络特征.②贸易网络节点空间分布不均,高节点度国家位于网络核心位置,网络异质性不高.③整体贸易网络的"核心-边缘"结构由美国、德国、法国、比利时形成的"四足鼎立"局面向美国、法国、比利时形成的"三足鼎立"局面转变,社团结构呈现先分散后重组的演变趋势.④中国在全球生物医药产品贸易网络中的地位逐步提高,枢纽作用明显,且对全球主要生物医药产品贸易国的依存度呈现逐渐减弱的趋势.
Abstract
With the rapid development of the biomedical industry in various countries,the glob-al trade of biomedical products is increasingly active.Based on the biomedical products trade data in the United Nations Commodity Trade Statistics Database from 2000 to 2020,social net-work analysis is applied to reveal the structural characteristics of the global biomedical products trade network and the evolution of China's position.The study shows that:①The global biomed-ical products trade network is closely linked,with a relatively stable trade network structure and the characteristics of a"small world"network.②The spatial distribution of nodes in the global biomedical products trade network is uneven,with high node degree countries located at the core of the network and little network heterogeneity.③The core-edge structure of the global biomed-ical products trade network has changed from the"four-legged"situation formed by the US,Ger-many,France and Belgium to the"three-legged"situation formed by the US,France and Bel-gium.The community structure has evolved in a trend of fragmentation followed by restructur-ing.④China's position in the global biomedical products trade network is gradually increasing,its role as a hub is obvious,and its dependence on the major global biomedical products trading countries is gradually decreasing.
关键词
生物医药产品/社会网络分析法/"核心-边缘"结构/社团结构/依存度Key words
biomedical products/social network analysis/"core-edge"structure/structure of the community/degree of dependence引用本文复制引用
出版年
2024
NETL
NSTL
万方数据