TY - JOUR IS - 36 JF - Proceedings of the National Academy of Sciences PB - PNAS EP - 10036 ID - eprints3552 N2 - Financial institutions form multilayer networks by engaging in contracts with each other and by holding exposures to common assets. As a result, the default probability of one institution depends on the default probability of all of 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 in the probability of systemic defaults. From the point of view of financial regulators, our findings show that the complexity of financial networks may decrease the ability to mitigate systemic risk, and thus it may increase the social cost of financial crises. SN - 1091-6490 KW - Financial contagion KW - Financial networks KW - Complexity KW - Default probability KW - Systemic risk Y1 - 2016/// UR - http://www.pnas.org/content/113/36/10031.abstract A1 - Battiston, Stefano A1 - Caldarelli, Guido A1 - May, Robert M. A1 - Roukny, Tarik A1 - Stiglitz, Joseph E. VL - 113 TI - The price of complexity in financial networks SP - 10031 AV - public N1 - SCOPUS ID: 2-s2.0-8498632199 ER -