TY - JOUR ID - eprints1128 VL - 69 JF - Physical Review E IS - 3 UR - http://dx.doi.org/10.1103/PhysRevE.69.035101 KW - PACS: 89.75.Fb KW - 89.75.Hc KW - 05.40.-a KW - 05.65.+b Y1 - 2004/03// TI - Widespread occurrence of the inverse square distribution in social sciences and taxonomy AV - none N2 - The widespread occurrence of an inverse square relation in the hierarchical distribution of subcommunities within communities (or subspecies within species) has been recently invoked as a signature of hierarchical self-organization within social and ecological systems. Here we show that, whether such systems are self-organized or not, this behavior is the consequence of the treelike classification method. Different treelike classifications (both of real and truly random systems) display a similar statistical behavior when considering the sizes of their sub-branches. PB - American Physical Society SN - 1539-3755 A1 - Caldarelli, Guido A1 - Caretta Cartozo, Cécile A1 - De Los Rios, Paolo A1 - Servedio, Vito D. P. ER -