School of Economics

2017 Discussion papers

School of Economics Discussion Paper 17/21

Strategic Default in Financial Networks

Nizar Allouch, University of Kent
Maya Jalloul, Queen Mary, University of London

December 2017


This paper investigates a model of strategic interactions in financial networks, where the decision by one agent on whether or not to default impacts the incentives of other agents to escape default. Agents’ payoffs are determined by the clearing mechanism introduced in the seminal contribution of Eisenberg and Noe (2001). We first show the existence of a Nash equilibrium of this default game. Next, we develop an algorithm to find all Nash equilibria that relies on the financial network structure. Finally, we explore some policy implications to achieve efficient coordination.

JEL Classification: C72; D53; D85; G21; G28; G33

Keywords: systemic risk; default; financial networks; coordination games; central clearing counterparty; financial regulation

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Last Updated: 06/02/2018