Collateralized Networks

44 Pages Posted: 20 Jun 2019

See all articles by Samim Ghamami

Samim Ghamami

University of California, Berkeley - Center for Risk Management Research; New York University (NYU); Goldman Sachs Group, Inc.

Paul Glasserman

Columbia Business School

Peyton Young

Government of the United States of America - Office of Financial Research; Brookings Institution; University of Oxford

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Date Written: June 14, 2019

Abstract

This paper studies the spread of losses and defaults in financial networks with two important features: collateral requirements and alternative contract termination rules in bankruptcy. When collateral is committed to a firm's counterparties, a solvent firm may default if it lacks sufficient liquid assets to meet its payment obligations. Collateral requirements can thus increase defaults and payment shortfalls. Moreover, one firm may benefit from the failure of another if the failure frees collateral committed by the surviving firm, giving it additional resources to make other payments. Contract termination at default may also improve the ability of other firms to meet their obligations. As a consequence of these features, the timing of payments and collateral liquidation must be carefully specified, and establishing the existence of payments that clear the network becomes more complex. Using this framework, we study the consequences of illiquid collateral for the spread of losses through fire sales; we compare networks with and without selective contract termination; and we analyze the impact of alternative bankruptcy stay rules that limit the seizure of collateral at default. Under an upper bound on derivatives leverage, full termination reduces payment shortfalls compared with selective termination.

Keywords: contagion, OTC markets, financial regulation, network, fire sales, collateral, automatic stays for qualified financial contracts

JEL Classification: D53, D70, E44, G1, G28, G33, K22

Suggested Citation

Ghamami, Samim and Glasserman, Paul and Young, Peyton, Collateralized Networks (June 14, 2019). Available at SSRN: https://ssrn.com/abstract=3404189 or http://dx.doi.org/10.2139/ssrn.3404189

Samim Ghamami (Contact Author)

University of California, Berkeley - Center for Risk Management Research ( email )

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New York University (NYU) ( email )

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Goldman Sachs Group, Inc. ( email )

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Paul Glasserman

Columbia Business School ( email )

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Peyton Young

Government of the United States of America - Office of Financial Research ( email )

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United States

Brookings Institution

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Washington, DC 20036
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University of Oxford

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United Kingdom

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