Quantitative reverse stress testing, bottom up

Claudio Albanese, Stéphane Crépey and Stefano Iabichino

Quantitative Finance, 2023, vol. 23, issue 5, 863-875

Abstract: We propose a bottom-up quantitative reverse stress testing framework that identifies forward-looking fragilities tailored to a bank's portfolio, credit and funding strategies, models, and calibration constraints. Thus, instead of relying on historical events, we run a Monte Carlo simulation, and we mine those future states that contribute the most to a bank's cost of capital expressed in terms of scenario differential. This approach allows identifying both the systemic and idiosyncratic weaknesses of the bank's portfolio, with applications that include solvency risk, extreme events hedging, liquidity risk management, trading and credit limits, model validation and model risk management.

Date: 2023
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Working Paper: Quantitative Reverse Stress Testing, Bottom Up (2022)
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DOI: 10.1080/14697688.2023.2187315

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