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A Framework for Assessing the Systemic Risk of Major Financial Institutions


Xin Huang


University of Oklahoma

Hao Zhou


Tsinghua University

Haibin Zhu


Bank for International Settlements (BIS)

May 1, 2009

Journal of Banking and Finance, Vol. 33, No. 11, pp. 2036–2049, November 2009
BIS Working Paper No. 281

Abstract:     
In this paper we propose a framework for measuring and stress testing the systemic risk for a group of major financial institutions. The systemic risk is measured by the price of insurance against financial distresses, which is based on ex ante measures of default probabilities of individual banks and forecasted asset return correlations. Importantly, using realized correlations estimated from high-frequency equity return data can significantly improve the accuracy of forecasted correlations. In addition, our stress testing methodology, as an integrated micro-macro model, takes into account dynamic linkages between the health of major US banks and the macro-financial condition. Our results suggest that the insurance premium to protect against losses that equal or exceed 15% of total liabilities of 12 major US financial firms stands at 110 billion in March 2008 and has a projected upper bound of 250 billion in July 2008.

Our methodology is closely related to but in sharp contrast with the Financial Stability Assessment Program (FSAP) conducted by IMF in recent years, the Supervisory Capital Assessment Program (SCAP) implemented by the U.S. regulatory authorities earlier this year, and the European-wide stress testing program sanctioned by the Committee of European Banking Supervisors (CEBS). These supervisory stress testing programs are primarily based on confidential banking information and adopt the historical stress scenarios as adverse as in the Great Depression era. In contrast, we rely on public banking information from the financial markets and use the statistical bootstrapping method to consistently assess the downside extreme outcomes. Therefore our approach is more applicable by the private sector in measuring and managing the systemic risk exposures of large complex banking institutions.

The concept of market-based stress testing and systemic risk assessment is an extension of the original idea by Merton and Perold (1993) that the capital of financial institutions is a risk-neutral concept reflected in current asset prices. A¨ıt-Sahalia and Lo (2000) regard value-at-risk (VaR) as inherently a risk-adjusted quantity implied by financial markets. A recent paper by Heaton, Lucas, and McDonald (2008) explicitly argues that capital reserve is a risk-neutral measurement.

Number of Pages in PDF File: 44

Keywords: Systemic risk, stress testing, portfolio credit risk, credit default swap, high-frequency data

JEL Classification: G21, G28, G14, C13

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Date posted: February 1, 2009 ; Last revised: November 19, 2009

Suggested Citation

Huang, Xin and Zhou, Hao and Zhu, Haibin, A Framework for Assessing the Systemic Risk of Major Financial Institutions (May 1, 2009). Journal of Banking and Finance, Vol. 33, No. 11, pp. 2036–2049, November 2009; BIS Working Paper No. 281. Available at SSRN: http://ssrn.com/abstract=1335023

Contact Information

Xin Huang
University of Oklahoma ( email )
Norman, OK 73019
United States
Hao Zhou (Contact Author)
Tsinghua University ( email )
43 Chengfu Road, Haidian District
Beijing, 100083
China
+86-10-62790655 (Phone)
HOME PAGE: http://www.pbcsf.tsinghua.edu.cn
Haibin Zhu
Bank for International Settlements (BIS) ( email )
Hong Kong
Hong Kong
852 2878 7145 (Phone)
852 2878 7123 (Fax)
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