Search Results - subject:"Scale-free behavior"

Trading leads to scale-free self-organization

Ebert, M.; Paul, W. - In: Physica A: Statistical Mechanics and its Applications 391 (2012) 23, pp. 6033-6038

Financial markets display scale-free behavior in many different aspects. The power-law behavior of part of the … market participants and at the same time to a scale-free behavior of return fluctuations and trading volume distributions. … distribution of individual wealth has been recognized by Pareto as early as the nineteenth century. Heavy-tailed and scale-free …

Persistent link: https://www.econbiz.de/10010589214

The emergence of scale-free networks with a seceding mechanism

Geng, Xian-Min; Wen, Guang-Hui; Wan, Shu-Chen; Xiong, Jie-Yu - In: Physica A: Statistical Mechanics and its Applications 388 (2009) 20, pp. 4484-4490

nodes. To random growing networks with preferential attachment, the model yields scale-free behavior for the degree …

Persistent link: https://www.econbiz.de/10011059130

Reachability and recoverability of sink nodes in growing acyclic directed networks

Barbosa, Valmir C. - In: Physica A: Statistical Mechanics and its Applications 387 (2008) 2, pp. 685-693

We study the growth of networks from a set of isolated ground nodes by the addition of one new node per time step and also of a fixed number of directed edges leading from the new node to randomly selected nodes already in the network. A fixed-width time window is used so that, in general, only...

Persistent link: https://www.econbiz.de/10010873068

Emergence of scale-free behavior in networks from limited-horizon linking and cost trade-offs

Barbosa, Valmir C.; Donangelo, Raul; Souza, Sergio R. - In: Physica A: Statistical Mechanics and its Applications 387 (2008) 4, pp. 1016-1024

We study network growth from a fixed set of initially isolated nodes placed at random on the surface of a sphere. The growth mechanism we use adds edges to the network depending on strictly local gain and cost criteria. Only nodes that are not too far apart on the sphere may be considered for...

Persistent link: https://www.econbiz.de/10011059444