Optimal kernel estimation of spot volatility of stochastic differential equations
Optimal kernel estimation of spot volatility of stochastic differential equations
复制标题
随机微分方程现货波动率的最优核估计
DOI:
10.1016/j.spa.2020.01.013
复制
发表时间:
2020
影响因子:
1.4
通讯作者:
Li, Cheng
中科院分区:
文献类型:
--
作者:
Figueroa-López, José E.;Li, Cheng
A unified framework to optimally select the bandwidth and kernel function of spot volatility kernel estimators is put forward. The proposed models include not only classical Brownian motion driven dynamics but also volatility processes that are driven by long-memory fractional Brownian motions or other Gaussian processes. We characterize the leading order terms of the mean squared error, which in turn enables us to determine an explicit formula for the leading term of the optimal bandwidth. Central limit theorems for the estimation error are also obtained. A feasible plug-in type bandwidth selection procedure is then proposed, for which, as a sub-problem, a new estimator of the volatility of volatility is developed. The optimal selection of the kernel function is also investigated. For Brownian Motion type volatilities, the optimal kernel turns out to be an exponential function, while, for fractional Brownian motion type volatilities, easily implementable numerical results to compute the optimal kernels are devised. Simulation studies further confirm the good performance of the proposed methods.
登录
查看更多内容
DOI:
10.2139/ssrn.1415977
发表时间:
2009
期刊:
Risk Management eJournal
影响因子:
--
作者:
O. Barndorff;Almut E. D. Veraart
通讯作者:
Almut E. D. Veraart
影响因子:
1.8
作者:
CAO, R;CUEVAS, A;MANTEIGA, WG
通讯作者:
MANTEIGA, WG
DOI:
10.1090/s0002-9939-1989-1011824-x
发表时间:
1989
期刊:
arXiv: Statistics Theory
影响因子:
--
作者:
M. Ossiander;E. Waymire
通讯作者:
E. Waymire
DOI:
--
发表时间:
1994
期刊:
影响因子:
--
作者:
Dean Phillips Foster;Daniel B. Nelson
通讯作者:
Daniel B. Nelson