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What is Value at Risk ( VaR ) and how has its calculation methodology evolved? Question 5 Answer a . VaR is a risk measure
What is Value at Risk VaR and how has its calculation methodology evolved?
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a
VaR is a risk measure that estimates the maximum potential loss on an investment over a given time period at a certain confidence level. Early VaR models used simple variancecovariance matrices, while modern approaches apply Monte Carlo simulations.
b
VaR measures the liquidity risk of a trading portfolio by estimating the time required to exit all positions without disrupting the market. Traditional VaR models assumed normal distribution, while current models capture fattailed distributions.
c
VaR quantifies the expected return of an investment strategy by analyzing historical returns data. It was first developed using basic statistical methods but now incorporates advanced machine learning algorithms.
d
VaR is a technique to optimize a portfolio's riskadjusted returns by minimizing volatility. Initially it relied on subjective risk preferences, but later adopted an analytical meanvariance optimization framework.
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