Journal
NATURE COMMUNICATIONS
Volume 8, Issue -, Pages -Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/ncomms14416
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Funding
- FET Project SIMPOL [610704]
- FET Project DOLFINS [640772]
- FET IP Project MULTIPLEX [317532]
- Economic and Social Research Council (ESRC) [ES/K002309/1]
- Swiss National Fund [PP00P1-144689]
- EU [654024, 676547]
- ESRC [ES/K002309/1] Funding Source: UKRI
- Swiss National Science Foundation (SNF) [PP00P1_144689] Funding Source: Swiss National Science Foundation (SNF)
- Economic and Social Research Council [ES/K002309/1] Funding Source: researchfish
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Following the financial crisis of 2007-2008, a deep analogy between the origins of instability in financial systems and complex ecosystems has been pointed out: in both cases, topological features of network structures influence how easily distress can spread within the system. However, in financial network models, the details of how financial institutions interact typically play a decisive role, and a general understanding of precisely how network topology creates instability remains lacking. Here we show how processes that are widely believed to stabilize the financial system, that is, market integration and diversification, can actually drive it towards instability, as they contribute to create cyclical structures which tend to amplify financial distress, thereby undermining systemic stability and making large crises more likely. This result holds irrespective of the details of how institutions interact, showing that policy-relevant analysis of the factors affecting financial stability can be carried out while abstracting away from such details.
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