英文标题:
《The Zumbach effect under rough Heston》
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作者:
Omar El Euch, Jim Gatheral, Rado\\v{s} Radoi\\v{c}i\\\'c, Mathieu
Rosenbaum
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最新提交年份:
2018
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英文摘要:
Previous literature has identified an effect, dubbed the Zumbach effect, that is nonzero empirically but conjectured to be zero in any conventional stochastic volatility model. Essentially this effect corresponds to the property that past squared returns forecast future volatilities better than past volatilities forecast future squared returns. We provide explicit computations of the Zumbach effect under rough Heston and show that they are consistent with empirical estimates. In agreement with previous conjectures however, the Zumbach effect is found to be negligible in the classical Heston model.
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中文摘要:
以前的文献已经确定了一种称为祖巴赫效应的效应,这种效应在经验上是非零的,但在任何传统的随机波动率模型中都被推测为零。从本质上说,这种效应对应于过去平方收益预测未来波动的特性,而不是过去波动预测未来平方收益的特性。我们提供了在粗糙Heston条件下Zumbach效应的显式计算,并表明它们与经验估计一致。然而,与先前的猜测一致,在经典的赫斯顿模型中,发现祖姆巴赫效应可以忽略不计。
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分类信息:
一级分类:Quantitative Finance 数量金融学
二级分类:Statistical Finance 统计金融
分类描述:Statistical, econometric and econophysics analyses with applications to financial markets and economic data
统计、计量经济学和经济物理学分析及其在金融市场和经济数据中的应用
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