Structural characteristics of the global trade network of biomedical products and the evolution of China's position
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.
biomedical productssocial network analysis"core-edge"structurestructure of the communitydegree of dependence
NETL
NSTL
万方数据
