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Answer: The bank's model calculates interest rate risk based on the median duration of the bonds in the portfolio.
B is correct. In the case of bad luck, no penalty is given, as would be the case for a bank affected by unpredictable movements in rates or markets. However, when risk models are not precise enough, a penalty is typically given since model accuracy could have easily been improved.
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In the context of the Basel framework, banks are required to adhere to specific regulatory standards for capital adequacy and risk management. Value-at-Risk (VaR) is a key risk measure used in this framework to estimate the potential loss in value of a portfolio over a defined period for a given confidence interval. Specifically, banks calculate the 1-day VaR at the 99% confidence level, meaning there is a 1% chance that the actual loss on any given day will exceed the VaR estimate.
Considering a history of 250 trading days, explain the most likely reason why a bank would face a penalty for recording more than four instances where their actual losses surpassed the 1-day 99% VaR threshold.
A
A large move in interest rates occurs in conjunction with a small move in correlations.
B
The bank's model calculates interest rate risk based on the median duration of the bonds in the portfolio.
C
A sudden market crisis in an emerging market, which leads to losses in the equity positions in that country.
D
A sudden devastating earthquake that causes major losses in the bank's key area of operation.
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