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Stress tests of UK banks using a VAR approach

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  • Glenn Hoggarth
  • Steffen Sorensen
  • Lea Zicchino

Abstract

This paper adopts a new approach to stress testing the UK banking system. We attempt to account for the dynamics between banks' write-offs and key macroeconomic variables, through conditioning our stress test on the historical correlation between the variables and allowing for feedback effects from credit risk to the macroeconomy. In contrast to most existing empirical stress testing work, this paper uses a direct measure of banks' fragility - the write-off to loan ratio. We find that both UK banks' total and corporate write-offs are significantly related to deviations of output from potential. Following an adverse output shock, total and corporate write-off ratios increase. Mortgage arrears, on the other hand, appear to be mainly dependent on household income gearing. The results suggest that, even if the most extreme economic stress conditions witnessed over the past two decades were repeated, the UK banking sector should remain robust.

Suggested Citation

  • Glenn Hoggarth & Steffen Sorensen & Lea Zicchino, 2005. "Stress tests of UK banks using a VAR approach," Bank of England working papers 282, Bank of England.
  • Handle: RePEc:boe:boeewp:282
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    References listed on IDEAS

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    1. Laurence M. Ball, 1999. "Policy Rules for Open Economies," NBER Chapters,in: Monetary Policy Rules, pages 127-156 National Bureau of Economic Research, Inc.
    2. Pesaran, M. Hashem & Schuermann, Til & Treutler, Bjorn-Jakob & Weiner, Scott M., 2006. "Macroeconomic Dynamics and Credit Risk: A Global Perspective," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 38(5), pages 1211-1261, August.
    3. Nicoletta Batini & Andrew Haldane, 1999. "Forward-Looking Rules for Monetary Policy," NBER Chapters,in: Monetary Policy Rules, pages 157-202 National Bureau of Economic Research, Inc.
    4. Helmut Elsinger & Alfred Lehar & Martin Summer, 2006. "Risk Assessment for Banking Systems," Management Science, INFORMS, vol. 52(9), pages 1301-1314, September.
    5. Pesaran, H. Hashem & Shin, Yongcheol, 1998. "Generalized impulse response analysis in linear multivariate models," Economics Letters, Elsevier, vol. 58(1), pages 17-29, January.
    6. Lea Zicchino, 2006. "A Model Of Bank Capital, Lending And The Macroeconomy: Basel I Versus Basel Ii," Manchester School, University of Manchester, vol. 74(s1), pages 50-77, September.
    7. Gertjan W. Vlieghe, 2001. "Indicators of fragility in the UK corporate sector," Bank of England working papers 146, Bank of England.
    8. Smith, Peter N & Wickens, Michael R., 2002. "Macroeconomic Sources of FOREX Risk," CEPR Discussion Papers 3148, C.E.P.R. Discussion Papers.
    9. Blake, Andrew P & Westaway, Peter F, 1996. "Credibility and the Effectiveness of Inflation Targeting Regimes," The Manchester School of Economic & Social Studies, University of Manchester, vol. 64(0), pages 28-50, Suppl..
    10. Marco Sorge, 2004. "Stress-testing financial systems: an overview of current methodologies," BIS Working Papers 165, Bank for International Settlements.
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