NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH
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Stress Testing Networks: The Case of Central Counterparties

Richard B. Berner, Stephen G. Cecchetti, Kermit L. Schoenholtz

NBER Working Paper No. 25686
Issued in March 2019
NBER Program(s):The Asset Pricing Program, The Corporate Finance Program, The Monetary Economics Program

Stress tests applied to individual institutions are an important tool for evaluating financial resilience. However, financial systems are typically complex, heterogeneous and rapidly changing, raising questions about the adequacy of conventional tests. In this paper, we interpret the current stress test practice from a network perspective, highlighting central counterparties (CCPs) as an example of a critical network hub. Networks that include CCPs involve deep and broad interconnections, making stress testing a challenging task. We analyze supplementing both private and supervisory CCP stress tests with a high-frequency indicator constructed from a market-based estimate of the conditional capital shortfall (SRISK) of the CCP’s clearing members. Applying our measure to two large CCPs, we analyze how they can transmit and amplify shocks across borders, conditional on the exhaustion of prefunded resources. Our results highlight how the network created by central clearing can act as an important transmission mechanism for shocks emanating from Europe.

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Document Object Identifier (DOI): 10.3386/w25686

 
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