Complex contagion leads to complex dynamics in models coupling behaviour and disease

Complex social contagion makes networks more vulnerable to disease outbreaks

Social network analysis is now widely used to investigate the dynamics of infectious disease spread. Vaccination dramatically disrupts disease transmission on a contact network, and indeed, high vaccination rates can potentially halt disease transmission altogether. Here, we build on mounting evidence that health behaviors - such as vaccination, and refusal thereof - can spread across social ne...

Editorial: “Disease-Only” alleles and genotypes in complex disorders?

Speculative behaviour and complex asset price dynamics

This paper analyses the dynamics of a model of a share market consisting of two groups of traders: fundamentalists, who form rational expectations on the fundamental value of the asset, and chartists, who base their trading decisions on an analysis of past price trends. The model is reduced to a two-dimensional map whose dynamic behaviour is analysed in detail, particularly with respect to glob...

Complex networks: Models and dynamics

Contagion spreading on complex networks with local deterministic dynamics

Typically, contagion strength is modeled by a transmission rate λ, whereby all nodes in a network are treated uniformly in a mean-field approximation. However, local agents react differently to the same contagion based on their local characteristics. Following our recent work [EPL 99, 58002 (2012)], we investigate contagion spreading models with local dynamics on complex networks. We therefore ...