Bayesian Time-Varying Quantile Forecasting for Value-at-Risk in Financial Markets
用于金融市场风险价值预测的贝叶斯时变分位数模型AI 解读 ↓
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AI 根据所提供的论文材料归类:摘要的核心目标是金融市场风险价值预测,并以尾部分位数模型评估风险,最直接对应尾部与系统性风险方向。
用于金融市场风险价值预测的贝叶斯时变分位数模型AI 解读 ↓
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Recently, advances in time-varying quantile modeling have proven effective in financial Value-at-Risk forecasting. Some well-known dynamic conditional autoregressive quantile models are generalized to a fully nonlinear family. The Bayesian solution to the general quantile regression problem, via the Skewed-Laplace distribution, is adapted and designed for parameter estimation in this model family via an adaptive Markov chain Monte Carlo sampling scheme. A simulation study illustrates favorable precision in estimation, compared to the standard numerical optimization method. The proposed model family is clearly favored in an empirical study of 10 major stock markets. The results that show the proposed model is more accurate at Value-at-Risk forecasting over a two-year period, when compared to a range of existing alternative models and methods.