Ongoing Processes in a Fitness Network Model under Restricted Resources

Takayuki Niizato and Yukio-Pegio Gunji

PLOS ONE, 2015, vol. 10, issue 5, 1-17

Abstract: In real networks, the resources that make up the nodes and edges are finite. This constraint poses a serious problem for network modeling, namely, the compatibility between robustness and efficiency. However, these concepts are generally in conflict with each other. In this study, we propose a new fitness-driven network model for finite resources. In our model, each individual has its own fitness, which it tries to increase. The main assumption in fitness-driven networks is that incomplete estimation of fitness results in a dynamical growing network. By taking into account these internal dynamics, nodes and edges emerge as a result of exchanges between finite resources. We show that our network model exhibits exponential distributions in the in- and out-degree distributions and a power law distribution of edge weights. Furthermore, our network model resolves the trade-off relationship between robustness and efficiency. Our result suggests that growing and anti-growing networks are the result of resolving the trade-off problem itself.

Date: 2015
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0127284

DOI: 10.1371/journal.pone.0127284

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