| Title |
Default Cascades in Complex Networks: Topology and Systemic Risk
|
|---|---|
| Published in |
Scientific Reports, September 2013
|
| DOI | 10.1038/srep02759 |
| Pubmed ID | |
| Authors |
Tarik Roukny, Hugues Bersini, Hugues Pirotte, Guido Caldarelli, Stefano Battiston |
| Abstract |
The recent crisis has brought to the fore a crucial question that remains still open: what would be the optimal architecture of financial systems? We investigate the stability of several benchmark topologies in a simple default cascading dynamics in bank networks. We analyze the interplay of several crucial drivers, i.e., network topology, banks' capital ratios, market illiquidity, and random vs targeted shocks. We find that, in general, topology matters only--but substantially--when the market is illiquid. No single topology is always superior to others. In particular, scale-free networks can be both more robust and more fragile than homogeneous architectures. This finding has important policy implications. We also apply our methodology to a comprehensive dataset of an interbank market from 1999 to 2011. |
X Demographics
The data shown below were collected from the profiles of 31 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 8 | 26% |
| United Kingdom | 4 | 13% |
| Switzerland | 2 | 6% |
| Spain | 2 | 6% |
| Belgium | 2 | 6% |
| Mexico | 1 | 3% |
| Ecuador | 1 | 3% |
| Italy | 1 | 3% |
| Unknown | 10 | 32% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 21 | 68% |
| Scientists | 9 | 29% |
| Science communicators (journalists, bloggers, editors) | 1 | 3% |
Mendeley readers
The data shown below were compiled from readership statistics for 133 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Italy | 3 | 2% |
| Switzerland | 2 | 2% |
| United States | 2 | 2% |
| Germany | 1 | <1% |
| Netherlands | 1 | <1% |
| Hungary | 1 | <1% |
| Belgium | 1 | <1% |
| United Kingdom | 1 | <1% |
| Unknown | 121 | 91% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 34 | 26% |
| Researcher | 27 | 20% |
| Student > Master | 16 | 12% |
| Professor > Associate Professor | 12 | 9% |
| Student > Doctoral Student | 7 | 5% |
| Other | 22 | 17% |
| Unknown | 15 | 11% |
| Readers by discipline | Count | As % |
|---|---|---|
| Economics, Econometrics and Finance | 37 | 28% |
| Computer Science | 19 | 14% |
| Physics and Astronomy | 18 | 14% |
| Social Sciences | 7 | 5% |
| Mathematics | 7 | 5% |
| Other | 21 | 16% |
| Unknown | 24 | 18% |
Attention Score in Context
This research output has an Altmetric Attention Score of 23. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 29 September 2013.
All research outputs
#1,667,142
of 25,706,302 outputs
Outputs from Scientific Reports
#15,705
of 142,543 outputs
Outputs of similar age
#14,679
of 216,248 outputs
Outputs of similar age from Scientific Reports
#80
of 647 outputs
Altmetric has tracked 25,706,302 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 93rd percentile: it's in the top 10% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 142,543 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 18.8. This one has done well, scoring higher than 88% of its peers.
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We're also able to compare this research output to 647 others from the same source and published within six weeks on either side of this one. This one has done well, scoring higher than 87% of its contemporaries.