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Interbank Discipline


Kathryn Judge


Columbia Law School

February 11, 2013

UCLA Law Review, Vol. 60, 2013, Forthcoming
Columbia Law and Economics Working Paper No. 432

Abstract:     
As banking has evolved over the last three decades, banks have become increasingly interconnected. This Article draws attention to an effect of this development that has important policy ramifications yet remains largely unexamined—a dramatic rise in interbank discipline. The Article demonstrates that today’s large, complex banks have financial incentives to monitor risk taking at other banks, the infrastructure, competence, and information to be fairly effective monitors, and mechanisms through which they can respond when a bank changes its risk profile. This suggests that interbank discipline affects bank risk taking and merits more consideration than it has received thus far.

The rise of interbank discipline has both positive and negative ramifications from a social welfare perspective. The good news is that self-interested banks may be expected to penalize a bank when it takes excessive risks, thereby deterring such risk taking. The bad news is that the interests of banks and society are not always so well aligned. Other banks, for example, may be expected to reward a bank when it changes its risk profile in a way that increases the probability that the government would bail the bank out rather than allowing it to fail. This is because a bailout protects a bank’s creditors, even though it is socially costly. Interbank discipline may thus encourage banks to alter their activities in ways that increase systemic fragility.

In drawing attention to the powerful yet mixed effects of interbank discipline on bank activity, this Article contributes to a new generation of scholarship on market discipline. Its aim is not to question whether we need regulation, but to address the pressing issue of how we should allocate inherently finite regulatory resources. By reducing the regulatory resources devoted to activities that other banks are performing relatively well, increasing the resources devoted to activities that regulators are uniquely situated or incentivized to address, and seeking to counteract the adverse effects of interbank discipline, bank oversight could be redesigned to more effectively promote the stability of the financial system.

Number of Pages in PDF File: 62

Keywords: banking, banking supervision, financial regulation, market discipline, systemic risk

JEL Classification: G01, G21, G28

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Date posted: September 18, 2012 ; Last revised: February 14, 2013

Suggested Citation

Judge, Kathryn, Interbank Discipline (February 11, 2013). UCLA Law Review, Vol. 60, 2013, Forthcoming; Columbia Law and Economics Working Paper No. 432. Available at SSRN: http://ssrn.com/abstract=2147899

Contact Information

Kathryn Judge (Contact Author)
Columbia Law School ( email )
435 West 116th Street
New York, NY 10025
United States
HOME PAGE: http://www.law.columbia.edu/fac/Kathryn_Judge
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