Which of the following techniques is a more appropriate risk management tool for a company to examine how well a particular model for calculating a risk measure would have performed in the past?
Back-testing
Aggregating Expected Shortfall (ES)
Stressed VaR
Aggregating Value-at-risk (VaR)
The correct answer is
Back testing
Back testing is something that is done to see how a particular model would have performed on the historical data.
Aggregate expected shortfall is a risk measure which is used to calculate the value of shortfall in portfolio at certain level in the worst-case scenario. Stressed VAR is a forward-looking measure of portfolio risk. Aggregating value at risk refers to the estimated amount of capital necessary to absorb losses that can happen due to change in market.
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