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Static and dynamic networks in interbank markets
Stockholm University, Faculty of Social Sciences, Department of Economics. The Research Institute of Industrial Economics (IFN), Sweden.
2015 (English)In: Network Science, ISSN 2050-1242, Vol. 3, no 01, 98-123 p.Article in journal (Refereed) Published
Abstract [en]

This paper proposes a model of network interactions in the interbank market. Our innovation is to model systemic risk in the interbank network as the propagation of incentives or strategic behavior rather than the propagation of losses after default. Transmission in our model is not based on default. Instead, we explain bank profitability based on competition incentives and the outcome of a strategic game. As competitors' lending decisions change, banks adjust their own decisions as a result: generating a “transmission” of shocks through the system. We provide a unique equilibrium characterization of a static model, and embed this model into a full dynamic model of network formation. We also determine the key bank, which is the bank that is crucial for the stability of the financial network.

Place, publisher, year, edition, pages
2015. Vol. 3, no 01, 98-123 p.
Keyword [en]
financial networks, interbank lending, interconnections, network centrality, key banks
National Category
Economics
Identifiers
URN: urn:nbn:se:su:diva-124418DOI: 10.1017/nws.2015.1ISI: 000365008700006OAI: oai:DiVA.org:su-124418DiVA: diva2:886000
Available from: 2015-12-21 Created: 2015-12-21 Last updated: 2016-01-04Bibliographically approved

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Zenou, Yves
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