The Price of Complexity in Financial Networks

Financial institutions form multi-layer networks of contracts among each other and exposures to common assets. As a result, the default probability of one institution depends on the default probability of all the other institutions in the network. Here, we show how small errors on the knowledge of t...

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Main Authors: Battiston, S, Caldarelli, G, May, R, Roukny, T, Stiglitz, J
Format: Journal article
Published: National Academy of Sciences 2016
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author Battiston, S
Caldarelli, G
May, R
Roukny, T
Stiglitz, J
author_facet Battiston, S
Caldarelli, G
May, R
Roukny, T
Stiglitz, J
author_sort Battiston, S
collection OXFORD
description Financial institutions form multi-layer networks of contracts among each other and exposures to common assets. As a result, the default probability of one institution depends on the default probability of all the other institutions in the network. Here, we show how small errors on the knowledge of the network of contracts can lead to large errors on the probability of systemic defaults. From the point of view of financial regulators, our findings show that the complexity of financial networks may decrease our ability to mitigate systemic risk and thus it may increase the social cost of financial crises.
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spelling oxford-uuid:d31d09ef-696e-4d54-b790-ecb34d75b57a2022-03-27T08:09:04ZThe Price of Complexity in Financial NetworksJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:d31d09ef-696e-4d54-b790-ecb34d75b57aSymplectic Elements at OxfordNational Academy of Sciences2016Battiston, SCaldarelli, GMay, RRoukny, TStiglitz, JFinancial institutions form multi-layer networks of contracts among each other and exposures to common assets. As a result, the default probability of one institution depends on the default probability of all the other institutions in the network. Here, we show how small errors on the knowledge of the network of contracts can lead to large errors on the probability of systemic defaults. From the point of view of financial regulators, our findings show that the complexity of financial networks may decrease our ability to mitigate systemic risk and thus it may increase the social cost of financial crises.
spellingShingle Battiston, S
Caldarelli, G
May, R
Roukny, T
Stiglitz, J
The Price of Complexity in Financial Networks
title The Price of Complexity in Financial Networks
title_full The Price of Complexity in Financial Networks
title_fullStr The Price of Complexity in Financial Networks
title_full_unstemmed The Price of Complexity in Financial Networks
title_short The Price of Complexity in Financial Networks
title_sort price of complexity in financial networks
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