CORES Scenario Analysis & Stress Testing 5 — Questions and Answers
Question 1: A risk team is evaluating a scenario involving simultaneous failure of two critical third-party vendors. Which operational risk event type under Basel II taxonomy is MOST relevant?
- Internal fraud
- Damage to physical assets
- Business disruption and system failures (Correct answer)
- Clients, products, and business practices
Correct answer: Business disruption and system failures
Third-party vendor failure that disrupts operations falls under the Basel II event type 'Business Disruption and System Failures.'
Question 2: Which of the following BEST describes 'scenario conditioning' in stress testing?
- Adjusting model outputs to pass regulatory thresholds
- Linking individual risk factor shocks so that they move consistently within a coherent macroeconomic narrative (Correct answer)
- Using past stress test results to condition future assumptions
- Conditioning staff behavior through stress test training exercises
Correct answer: Linking individual risk factor shocks so that they move consistently within a coherent macroeconomic narrative
Scenario conditioning ensures that correlated risk factors (e.g., GDP, unemployment, credit spreads) move together in a logically consistent manner across the scenario.
Question 3: A firm's climate risk stress test projects significant stranded asset losses by 2035. What makes this scenario categorically different from typical one-year operational risk scenarios?
- Climate scenarios use stochastic models while operational risk scenarios are deterministic
- Climate scenarios require multi-decade time horizons over which business models and regulations may transform (Correct answer)
- Climate stress tests are voluntary and do not require capital allocation
- Climate scenarios only affect physical infrastructure, not financial performance
Correct answer: Climate scenarios require multi-decade time horizons over which business models and regulations may transform
Climate risk requires long time horizons because physical and transition risks materialize over decades, unlike traditional short-horizon stress tests.
Question 4: When calculating stressed operational risk capital using scenario analysis, what role does expert judgment play in the LDA framework?
- Expert judgment is prohibited to prevent bias in capital calculations
- Expert judgment supplements sparse historical data to inform severity and frequency estimates for rare events (Correct answer)
- Expert judgment replaces quantitative modeling for banks with fewer than 10 years of loss data
- Expert judgment is used only to validate outputs, never to generate inputs
Correct answer: Expert judgment supplements sparse historical data to inform severity and frequency estimates for rare events
Because catastrophic operational risk events are rare, expert judgment is essential for estimating scenario parameters where historical data is insufficient.
Question 5: A bank executes a liquidity stress test showing it cannot survive a 30-day severe market disruption. Under Basel III's LCR framework, what is this bank's MOST immediate regulatory obligation?
- Immediately suspend all new lending until liquidity improves
- Notify the regulator and submit a remediation plan, as LCR must be maintained at 100% or above (Correct answer)
- Raise the LCR threshold internally to 120% as a buffer
- Convert long-term assets to cash within 48 hours
Correct answer: Notify the regulator and submit a remediation plan, as LCR must be maintained at 100% or above
Banks failing to meet the 100% LCR minimum must notify their regulator and provide a remediation plan as required under Basel III liquidity standards.
Question 6: Which approach to stress testing MOST effectively captures non-linear risks such as cliff effects and threshold breaches?
- Single-factor linear sensitivity tests
- Full revaluation under multiple correlated scenarios with non-linear portfolio payoffs (Correct answer)
- Historical simulation using the prior 250 trading days
- Parametric VaR with normal distribution assumptions
Correct answer: Full revaluation under multiple correlated scenarios with non-linear portfolio payoffs
Full revaluation under correlated multi-factor scenarios captures threshold effects and non-linearities that linear approximation and parametric VaR miss.
Question 7: An operational risk manager presents scenario results showing a $500M tail loss to the board. A board member asks how confident the team is in this estimate. Which response BEST demonstrates sound risk management communication?
- 'The model is validated, so the estimate is reliable.'
- 'This estimate carries wide uncertainty; we present a range and document the key assumptions driving it.' (Correct answer)
- 'We are 99.9% confident because we used a VaR model.'
- 'The number is conservative because we added a 20% buffer.'
Correct answer: 'This estimate carries wide uncertainty; we present a range and document the key assumptions driving it.'
Honest communication of uncertainty, including a range and transparent assumptions, is the hallmark of sound risk management and supports informed board decision-making.
CORES Scenario Analysis & Stress Testing 5
A risk team is evaluating a scenario involving simultaneous failure of two critical third-party vendors.
Which operational risk event type under Basel II taxonomy is MOST relevant?