Modeling the Role of Networks and Individual Differences in Inter-Group Violence
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Isakov, Alexander, Amelia Holcomb, Luke Glowacki, and Nicholas A. Christakis. 2016. “Modeling the Role of Networks and Individual Differences in Inter-Group Violence.” PLoS ONE 11 (2): e0148314. doi:10.1371/journal.pone.0148314. http://dx.doi.org/10.1371/journal.pone.0148314.Abstract
There is significant heterogeneity within and between populations in their propensity to engage in conflict. Most research has neglected the role of within-group effects in social networks in contributing to between-group violence and focused instead on the precursors and consequences of violence, or on the role of between-group ties. Here, we explore the role of individual variation and of network structure within a population in promoting and inhibiting group violence towards other populations. Motivated by ethnographic observations of collective behavior in a small-scale society, we describe a model with differentiated roles for individuals embedded within friendship networks. Using a simple model based on voting-like dynamics, we explore several strategies for influencing group-level behavior. When we consider changing population level attitude changes and introducing control nodes separately, we find that a particularly effective control strategy relies on exploiting network degree. We also suggest refinements to our model such as tracking fine-grained information spread dynamics that can lead to further enrichment in using evolutionary game theory models for sociological phenomena.Other Sources
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