Estimation risk for the VaR of portfolios driven by semi-parametric multivariate models
半参数多元模型驱动的投资组合 VaR 估计风险AI 解读 ↓
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AI 根据所提供的论文材料归类:摘要以投资组合条件 VaR、市场风险与估计风险的联合量化为核心,直接对应金融尾部风险,而非资产定价或收益预测。
半参数多元模型驱动的投资组合 VaR 估计风险AI 解读 ↓
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Joint estimation of market and estimation risks in portfolios is investigated, when the individual returns follow a semi-parametric multivariate dynamic model and the asset composition is time-varying. Under ellipticity of the conditional distribution, asymptotic theory for the estimation of the conditional Value-at-Risk (VaR) is developed. An alternative method – the Filtered Historical Simulation – which does not rely on ellipticity, is also studied. Asymptotic confidence intervals for the conditional VaR, which allow for simultaneous quantification of the market and estimation risks, are derived. The particular case of minimum variance portfolios is analyzed in more detail. Potential usefulness, feasibility and drawbacks of the two approaches are illustrated via Monte-Carlo experiments and an empirical study based on stock returns.