Evolution of the rare earth trade network:A perspective of dependency and competition  

作　　者：Jilan Xu Jiahao Li Vincent Charles Xin Zhao 

机构地区：[1]School of Urban and Regional Science,Shanghai University of Finance and Economics,Shanghai 200433,China [2]School of Business,East China University of Science and Technology,Shanghai 200237,China [3]School of Management,University of Bradford,Bradford BD71DP,United Kingdom [4]School of Statistics and Applied Mathematics,Anhui University of Finance and Economics,Bengbu 233030,China

出　　处：《Geoscience Frontiers》2024年第3期183-191,共9页地学前缘（英文版）

基　　金：supported by the Ministry of Education of the People’s Republic of China Humanities and Social Sciences Youth Foundation(Grant No.22YJC910014);the Social Sciences Planning Youth Project of Anhui Province(Grant No.AHSKQ2022D138);the Innovation Development Research Project of Anhui Province(Grant No.2021CX053).

摘　　要：As a global strategic reserve resource,rare earth has been widely used in important industries,such as military equipment and biomedicine.However,existing analyses based solely on the total volume of rare earth trade fail to uncover the underlying competition and dependency dynamics.To address this gap,this paper employs the principles of trade preference and import similarity to construct dependency and competition networks.Complex network analysis is then employed to study the evolution of the global rare earth trade network from 2002 to 2018.The main conclusions are as follows.The global rare earth trade follows the Pareto principle,and the trade network shows a scale-free distribution.China has emerged as the world’s largest importer and exporter of rare earth since 2017.In the dependency network,China has become the most dependent country since 2006.The result of community division shows that China has separated from the American community and formed new communities with the Association of Southeast Asian Nations(ASEAN)countries.The United States of America has formed a super-strong community with European and Asian countries.In the competition network,the distribution of competition intensity follows a scale-free distribution.Most countries face low-intensity competition,but there are numerous competing countries.The competition related to China has increased significantly.Lastly,the competition source for the United States of America has shifted from Mexico to China,resulting in China,the USA,and Japan becoming the core participants in the competition network.

关 键 词：Rare earth Trade network DEPENDENCY COMPETITION Complex network analysis 

分 类 号：P542[天文地球—构造地质学]