ESTIMATION OF FLUX BETWEEN INTERACTING NODES ON HUGE INTER-FIRM NETWORKS

作     者：KOUTAROU TAMURA WATARU MIURA MISAKO TAKAYASU HIDEKI TAKAYASU SATOSHI KITAJIMA HAYATO GOTO 

作者机构：Department of Computational Intelligence and Systems Science Interdisciplinary Graduate School of Science and Engineering Tokyo Institute of Technology 4229 Nagatsuta-cho Midori-ku Yokohama 226-8502 Japan Sony Computer Science Laboratories 3-14-13 Higashi-Gotanda Shinagawa-ku Tokyo141-0022 Japan SPECIA Team Industrial Survey Department TEIKOKU DATABANK LTD. 2-5-20 Minami Aoyama Minato-ku Tokyo 107-8680 Japan 

出 版 物：《International Journal of Modern Physics: Conference Series》 

年 卷 期：2012年第ijmpcs卷第16期

页      面：93-104页

学科分类：07[理学] 0702[理学-物理学] 

主　　题：Complex network non-linear interaction scale free 

摘      要：We analyze Japanese inter-firm network data showing scale-free properties as an example of a real complex network. The data contains information on money flow (annual transaction volume) between about 7000 pairs of firms. We focus on this money-flow data and investigate the correlation between various quantities such as sales or link numbers. We find that the flux from a buyer to a supplier is given by the product of the fractional powers of both sales with different exponents. This result indicates that the principle of detailed balance does not hold in the real transport of money; therefore, random walk type transport models such as PageRank are not suitable.