Applications and contrasting analyses of VaR and CvaR in the portfolio
Zhao Fe
Abstract
Zhao Fe
Abstract
VaR(Value at Risk)theory has been a comparatively mature theory to analyze and measure the risk in the world,and widely used in many aspects of the financial industry. However,the special values(actual values beyond the predicted values of VaR) which may have significant influences on the evaluation of the risk are usually ignored in the measurement of risk distribution functions.In this paper,flaws of VaR will be analyzed and characteristics of the CVaR(Conditional VaR)based on the VaR will be introduced and results of the portfolio constructed with four stocks by means of VaR and CvaR illustrate the differences of the two means in risk measurement.
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VaR(Value at Risk)theory has been a comparatively mature theory to analyze and measure the risk in the world,and widely used in many aspects of the financial industry. However,the special values(actual values beyond the predicted values of VaR) which may have significant influences on the evaluation of the risk are usually ignored in the measurement of risk distribution functions.In this paper,flaws of VaR will be analyzed and characteristics of the CVaR(Conditional VaR)based on the VaR will be introduced and results of the portfolio constructed with four stocks by means of VaR and CvaR illustrate the differences of the two means in risk measurement.
Key concepts: CVAR, Value at risk, Expected shortfall, Portfolio, Econometrics, Risk measure, Modern portfolio theory, Economics