# Strength of weak layers in cascading failures on multiplex networks: case of the international trade network

@article{Lee2016StrengthOW, title={Strength of weak layers in cascading failures on multiplex networks: case of the international trade network}, author={Kyu-Min Lee and Kwang-Il Goh}, journal={Scientific Reports}, year={2016}, volume={6} }

Many real-world complex systems across natural, social, and economical domains consist of manifold layers to form multiplex networks. The multiple network layers give rise to nonlinear effect for the emergent dynamics of systems. Especially, weak layers that can potentially play significant role in amplifying the vulnerability of multiplex networks might be shadowed in the aggregated single-layer network framework which indiscriminately accumulates all layers. Here we present a simple model of…

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## References

SHOWING 1-10 OF 76 REFERENCES

### Layer-switching cost and optimality in information spreading on multiplex networks

- Computer ScienceScientific reports
- 2016

The results elucidate the essential role of multiplexity that its explicit consideration should be crucial for realistic modeling and prediction of spreading phenomena on multiplex social networks in an era of ever-diversifying social interaction layers.

### Multiplexity-facilitated cascades in networks.

- Computer SciencePhysical review. E, Statistical, nonlinear, and soft matter physics
- 2012

This work generalizes the threshold cascade model to multiplex networks, in which a node activates if a sufficiently large fraction of neighbors in any layer are active, and shows that both combining layers and splitting a network into layers facilitate cascades.

### Catastrophic cascade of failures in interdependent networks

- BusinessNature
- 2010

This work develops a framework for understanding the robustness of interacting networks subject to cascading failures and presents exact analytical solutions for the critical fraction of nodes that, on removal, will lead to a failure cascade and to a complete fragmentation of two interdependent networks.

### Network robustness of multiplex networks with interlayer degree correlations.

- Computer SciencePhysical review. E, Statistical, nonlinear, and soft matter physics
- 2014

It is found that correlated coupling can affect the structural robustness of multiplex networks in diverse fashion, especially for maximally correlated duplex networks.

### Reconstructing the world trade multiplex: the role of intensive and extensive biases.

- EconomicsPhysical review. E, Statistical, nonlinear, and soft matter physics
- 2014

This work provides a detailed analysis of the world trade multiplex by comparing it to an enhanced null model that simultaneously reproduces the strength and the degree of each node and shows that real-world multiplexes can be strongly shaped by layer-specific local constraints.

### Coevolution and correlated multiplexity in multiplex networks

- PhysicsPhysical review letters
- 2013

It is shown analytically and numerically that the coevolution can induce strong degree correlations across layers, as well as modulate degree distributions, and can alter the system's response to the dynamical process, exemplified by the suppressed susceptibility to a social cascade process.

### Correlated multiplexity and connectivity of multiplex random networks

- Computer Science
- 2012

It is demonstrated that the correlated multiplexity can drastically affect the properties of a giant component in the network when the degrees of a node for different interactions in a duplex Erdős–Rényi network are maximally correlated.

### Analysis of complex contagions in random multiplex networks

- Computer SciencePhysical review. E, Statistical, nonlinear, and soft matter physics
- 2012

The results extend the existing work on complex contagions in several directions by providing solutions for coupled random networks whose vertices are neither identical nor disjoint, and showing that content-dependent propagation over a multiplex network leads to a subtle relation between the giant vulnerable component of the graph and the global cascade condition that is not seen in the existing models in the literature.

### A simple model of global cascades on random networks

- Computer ScienceProceedings of the National Academy of Sciences of the United States of America
- 2002

It is shown that heterogeneity plays an ambiguous role in determining a system's stability: increasingly heterogeneous thresholds make the system more vulnerable to global cascades; but anincreasingly heterogeneous degree distribution makes it less vulnerable.