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Bayesian analysis of moving average stochastic volatility models: modeling in-mean effects and leverage for financial time series

机译:移动平均随机波动率模型的贝叶斯分析:均值效果与金融时序效果和杠杆效果

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摘要

We propose a moving average stochastic volatility in mean model and a moving average stochastic volatility model with leverage. For parameter estimation, we develop efficient Markov chain Monte Carlo algorithms and illustrate our methods, using simulated and real data sets. We compare the proposed specifications against several competing stochastic volatility models, using marginal likelihoods and the observed-data Deviance information criterion. We also perform a forecasting exercise, using predictive likelihoods, the root mean square forecast error and Kullback-Leibler divergence. We find that the moving average stochastic volatility model with leverage better fits the four empirical data sets used.
机译:我们提出了杠杆式模型中的平均随机波动率和移动平均随机挥发性模型。对于参数估计,我们使用模拟和实际数据集开发高效的Markov链Monte Carlo算法并说明了我们的方法。我们使用边缘似然和观察数据偏差信息标准对拟议的拟议规范进行比较若干竞争随机挥发性模型。我们还使用预测似然性进行预测锻炼,根均线预测误差和kullback-Leibler发散。我们发现,具有杠杆的移动平均随机波动率模型更好地适合使用的四种经验数据集。

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