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Complexity, concentration and contagion

delete2011-07-01
delete469
PRE
AI
P
Prasanna Gai
A
Andrew Haldane
S
Sujit Kapadia *
DOI:10.1016/j.jmoneco.2011.05.005delete
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Abstract

Abstract

En 中文
This paper develops a network model of interbank lending in which unsecured claims, repo activity and shocks to the haircuts applied to collateral assume centre stage. We show how systemic liquidity crises of the kind associated with the interbank market collapse of 2007-2008 can arise within such a framework, with funding contagion spreading widely through the web of interlinkages. Our model illustrates how greater complexity and concentration in the financial network may amplify this fragility. The analysis suggests how a range of policy measures - including tougher liquidity regulation, macro-prudential policy, and surcharges for systemically important financial institutions could make the financial system more resilient. (C) 2011 Bank of England. Published by Elsevier B.V. All rights reserved.
Keywords:
SYSTEMIC RISK
LIQUIDITY
MARKETS

Journal

Journal of Monetary Economics cover
Journal of Monetary Economics
IF:
4.1
Papers:
3.2K
Citations:
1.1W

Organization

U
University of Auckland
Scholars:
2.3W
Papers: 2.4W
Citations: 3.3W
B
Bank of England
Scholars:
225
Papers: 210
Citations: 377