The art and science of stress testing

Greg Hopper
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Greg Hopper: Managing Director, Goldman Sachs, USA

Journal of Risk Management in Financial Institutions, 2013, vol. 7, issue 1, 62-71

Abstract: Although stress tests are intended to complement the use of risk management models such as value at risk (VaR) and potential exposure models, sometimes these risk management models can be used to generate more empirically relevant stress tests. In this article, four case studies are discussed in which it is illustrated how to use risk management models in the formulation of stress tests. These examples also illustrate how risk management models may be used to formulate stress tests as well as quantify the largest risks inherent in a firm's portfolio. The paper discusses how models might be used to calibrate a stress test of a financial variable when there is very little empirical evidence on how the variable has behaved historically, and it also suggests how models can be used to calibrate and formulate stress tests that include the mitigating effects of dynamic hedging, using a credit valuation adjustment model as an example. The emphasis throughout is on the use of practical techniques that employ risk management models already in use.

Keywords: stress test; risk management; credit valuation adjustment (search for similar items in EconPapers)
JEL-codes: E5 G2 (search for similar items in EconPapers)
Date: 2013
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Persistent link: https://EconPapers.repec.org/RePEc:aza:rmfi00:y:2013:v:7:i:1:p:62-71

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