Symmetry of the world trade network provides a novel perspective to understand theworld-wide trading system.However,symmetry in the world trade network (WTN) has been rarelystudied so far.In this paper,the authors sys...Symmetry of the world trade network provides a novel perspective to understand theworld-wide trading system.However,symmetry in the world trade network (WTN) has been rarelystudied so far.In this paper,the authors systematically explore the symmetry in WTN.The authorsconstruct WTN in 2005 and explore the size and structure of its automorphism group,through which theauthors find that WTN is symmetric,particularly,locally symmetric to a certain degree.Furthermore,the authors work out the symmetric motifs of WTN and investigate the structure and function of thesymmetric motifs,coming to the conclusion that local symmetry will have great effect on the stabilityof the WTN and that continuous symmetry-breakings will generate complexity and diversity of thetrade network.Finally,utilizing the local symmetry of the network,the authors work out the quotientof WTN,which is the structural skeleton dominating stability and evolution of WTN.展开更多
基金supported by the National Natural Science Foundation of China under Grant No. 70371070 Shanghai Leading Academic Discipline Project under Grant No. S30504Key Project for Fundamental Research of STCSM under Grant No. 06JC14057
文摘Symmetry of the world trade network provides a novel perspective to understand theworld-wide trading system.However,symmetry in the world trade network (WTN) has been rarelystudied so far.In this paper,the authors systematically explore the symmetry in WTN.The authorsconstruct WTN in 2005 and explore the size and structure of its automorphism group,through which theauthors find that WTN is symmetric,particularly,locally symmetric to a certain degree.Furthermore,the authors work out the symmetric motifs of WTN and investigate the structure and function of thesymmetric motifs,coming to the conclusion that local symmetry will have great effect on the stabilityof the WTN and that continuous symmetry-breakings will generate complexity and diversity of thetrade network.Finally,utilizing the local symmetry of the network,the authors work out the quotientof WTN,which is the structural skeleton dominating stability and evolution of WTN.
