%0 Journal Article
%@ 0031-9007
%A Caldarelli, Guido
%A Capocci, Andrea
%A De Los Rios, Paolo
%A Muñoz, Miguel A.
%D 2002
%F eprints:1137
%I American Physical Society
%J Physical Review Letters
%K PACS: 89.75.Hc, 89.75.Da  
%N 25
%T Scale-Free networks from varying vertex intrinsic fitness
%U http://eprints.imtlucca.it/1137/
%V 89
%X A new mechanism leading to scale-free networks is proposed in this Letter. It is shown that, in many cases of interest, the connectivity power-law behavior is neither related to dynamical properties nor to preferential attachment. Assigning a quenched fitness value xi to every vertex, and drawing links among vertices with a probability depending on the fitnesses of the two involved sites, gives rise to what we call a good-get-richer mechanism, in which sites with larger fitness are more likely to become hubs (i.e., to be highly connected).
%Z © 2002 American Physical Society