2015

Static and Dynamic Networks in Interbank Markets

Reprint No. 2015:19

Author(s): Ethan Cohen-Cole, Eleonora Patacchini and Yves ZenouYear: 2015 Title: Network Science Volume (No.): 3 (1) Pages: 98–123
Online article (restrictions may apply)


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.


Reference:
Cohen-Cole, Ethan, Eleonora Patacchini and Yves Zenou (2015), "Static and Dynamic Networks in Interbank Markets". Network Science 3(1), 98–123.

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Martin Ljunge, IFN, is the author of a chapter, "Trust promotes health: addressing reverse causality by studying children of immigrants", in a new book edited by Sherman Folland and Eric Nauenberg. The cutting edge of research is presented, covering the ever-expanding social capital field.

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