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arXiv 1801.09458q-fin.MFq-fin.PR
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粗糙Heston模型中的矩爆炸

Moment Explosions in the Rough Heston Model

Stefan Gerhold, Christoph Gerstenecker, Arpad Pinter

摘要:

我们证明了粗糙赫斯顿模型中的矩爆炸时间[El Euch,Rosenbaum 2016,arxiv:1609.02108]是有限的当且仅当它对于经典赫斯顿模型是有限的。建立了爆炸时间的上界和下界,以及计算爆炸时间的算法(在某些限制下)。我们证明了所有到期日的临界时刻都是有限的。对于负相关,我们应用我们的矩爆炸时间算法来计算下临界矩。

英文摘要:

We show that the moment explosion time in the rough Heston model [El Euch, Rosenbaum 2016, arxiv:1609.02108] is finite if and only if it is finite for the classical Heston model. Upper and lower bounds for the explosion time are established, as well as an algorithm to compute the explosion time (under some restrictions). We show that the critical moments are finite for all maturities. For negative correlation, we apply our algorithm for the moment explosion time to compute the lower critical moment.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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