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基于极差的条件自回归极差模型 被引量:1

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摘要 本文介绍了一种在固定时间区间上资产价格极差的动态模型:条件自回归极差(CARR)模型。CARR模型的条件极差十分类似GARCH模型中的条件方差,而且CARR模型也相似于ACD(Autoregressive Conditional Duration)模型。极端值理论(Extreme value theory)暗示极差是波动的一种有效估计,因此CARR模型可以看作是波动模型,并通过实证分析发现CARR模型的样本期外波动的预测效果比标准的GARCH波动模型要好。
出处 《统计与决策》 CSSCI 北大核心 2007年第12期148-149,共2页 Statistics & Decision
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