Short-time near-the-money skew in rough fractional volatility models
Short-time near-the-money skew in rough fractional volatility models
复制标题
粗略分数波动率模型中的短期近货币偏斜
DOI:
10.1080/14697688.2018.1529420
复制
发表时间:
2019
影响因子:
1.3
通讯作者:
B. Stemper
中科院分区:
文献类型:
--
作者:
C. Bayer;P. K. Friz;A. Gulisashvili;B. Horvath;B. Stemper
We consider rough stochastic volatility models where the driving noise of volatility has fractional scaling, in the ‘rough’ regime of Hurst parameter. This regime recently attracted a lot of attention both from the statistical and option pricing point of view. With focus on the latter, we sharpen the large deviation results of Forde-Zhang [Asymptotics for rough stochastic volatility models.SIAM J. Financ. Math., 2017,8(1), 114–145] in a way that allows us to zoom-in around the money while maintaining full analytical tractability. More precisely, this amounts to proving higher order moderate deviation estimates, only recently introduced in the option pricing context. This in turn allows us to push the applicability range of known at-the-money skew approximation formulae from CLT type log-moneyness deviations of order(works of Alòs, León & Vives and Fukasawa) to the wider moderate deviations regime.
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DOI:
--
发表时间:
2009
期刊:
影响因子:
--
作者:
Kuriki;S.and Takemura;A.;稲浜譲
通讯作者:
稲浜譲
DOI:
--
发表时间:
2012
期刊:
影响因子:
--
作者:
A. Mijatović;P. Tankov
通讯作者:
P. Tankov
影响因子:
1.7
作者:
Fukasawa, Masaaki
通讯作者:
Fukasawa, Masaaki
DOI:
--
发表时间:
2015
期刊:
影响因子:
--
作者:
Yasufumi Osajima
通讯作者:
Yasufumi Osajima
影响因子:
1
作者:
Johannes Muhle‐Karbe;Marcel Nutz
通讯作者:
Marcel Nutz