8011試験無料問題集「PRMIA Credit and Counterparty Manager (CCRM) Certificate 認定」
Which of the following statements are true in relation to Historical Simulation VaR?
I. Historical Simulation VaR assumes returns are normally distributed but have fat tails II. It uses full revaluation, as opposed to delta or delta-gamma approximations III. A correlation matrix is constructed using historical scenarios IV. It particularly suits new products that may not have a long time series of historical data available
I. Historical Simulation VaR assumes returns are normally distributed but have fat tails II. It uses full revaluation, as opposed to delta or delta-gamma approximations III. A correlation matrix is constructed using historical scenarios IV. It particularly suits new products that may not have a long time series of historical data available
正解：A
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Which of the following are true:
I. The total of the component VaRs for all components of a portfolio equals the portfolio VaR.
II. The total of the incremental VaRs for each position in a portfolio equals the portfolio VaR.
III. Marginal VaR and incremental VaR are identical for a $1 change in the portfolio.
IV. The VaR for individual components of a portfolio is sub-additive, ie the portfolio VaR is less than (or in extreme cases equal to) the sum of the individual VaRs.
V. The component VaR for individual components of a portfolio is sub-additive, ie the portfolio VaR is less than the sum of the individual component VaRs.
I. The total of the component VaRs for all components of a portfolio equals the portfolio VaR.
II. The total of the incremental VaRs for each position in a portfolio equals the portfolio VaR.
III. Marginal VaR and incremental VaR are identical for a $1 change in the portfolio.
IV. The VaR for individual components of a portfolio is sub-additive, ie the portfolio VaR is less than (or in extreme cases equal to) the sum of the individual VaRs.
V. The component VaR for individual components of a portfolio is sub-additive, ie the portfolio VaR is less than the sum of the individual component VaRs.
正解：D
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Which of the following statements is true in respect of different approaches to calculating VaR?
I. Linear or parametric VaR does not take correlations into account
II. For large portfolios with little or no optionality or other non-linear attributes, parametric VaR is an efficient approach to calculating VaR III. For large portfolios with complex sources of risk and embedded optionalities, the full revaluation method of calculating VaR should be preferred IV. Delta normal local revaluation based VaR is suitable for fixed income and option portfolios only
I. Linear or parametric VaR does not take correlations into account
II. For large portfolios with little or no optionality or other non-linear attributes, parametric VaR is an efficient approach to calculating VaR III. For large portfolios with complex sources of risk and embedded optionalities, the full revaluation method of calculating VaR should be preferred IV. Delta normal local revaluation based VaR is suitable for fixed income and option portfolios only
正解：D
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A bank extends a loan of $1m to a home buyer to buy a house currently worth $1.5m, with the house serving as the collateral. The volatility of returns (assumed normally distributed) on house prices in that neighborhood is assessed at 10% annually. The expected probability of default of the home buyer is 5%.
What is the probability that the bank will recover less than the principal advanced on this loan; assuming the probability of the home buyer's default is independent of the value of the house?
What is the probability that the bank will recover less than the principal advanced on this loan; assuming the probability of the home buyer's default is independent of the value of the house?
正解：B
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