Extreme conditional expectile estimation in heavy-tailed heteroscedastic regression models

S Girard, G Stupfler, A Usseglio-Carleve - The Annals of statistics, 2021 - projecteuclid.org
Extreme conditional expectile estimation in heavy-tailed heteroscedastic regression models
Page 1 The Annals of Statistics 2021, Vol. 49, No. 6, 3358–3382 https://doi.org/10.1214/21-AOS2087 …

An efficient approach to quantile capital allocation and sensitivity analysis

V Asimit, L Peng, R Wang, A Yu - Mathematical Finance, 2019 - Wiley Online Library
In various fields of applications such as capital allocation, sensitivity analysis, and systemic
risk evaluation, one often needs to compute or estimate the expectation of a random …

Modeling normalcy‐dominant ordinal time series: an application to air quality level

M Liu, F Zhu, K Zhu - Journal of Time Series Analysis, 2022 - Wiley Online Library
Inspired by the study of air quality level data, this article proposes a new model for the
normalcy‐dominant ordinal time series. The proposed model is based on a new zero‐one …

Risk-parameter estimation in volatility models

C Francq, JM Zakoïan - Journal of Econometrics, 2015 - Elsevier
This paper introduces the concept of risk parameter in conditional volatility models of the
form ϵ t= σ t (θ 0) η t and develops statistical procedures to estimate this parameter. For a …

Network GARCH model

J Zhou, D Li, R Pan, H Wang - Statistica Sinica, 2020 - JSTOR
The multivariate GARCH (MGARCH) model is popular for analyzing financial time series
data. However, statistical inferences for MGARCH models are quite challenging, owing to …

Bootstrapping the portmanteau tests in weak auto-regressive moving average models

K Zhu - Journal of the Royal Statistical Society Series B …, 2016 - academic.oup.com
The paper uses a random-weighting (RW) method to bootstrap the critical values for the
Ljung–Box or Monti portmanteau tests and weighted Ljung–Box or Monti portmanteau tests …

Asymptotic inference for AR models with heavy-tailed G-GARCH noises

R Zhang, S Ling - Econometric Theory, 2015 - cambridge.org
It is well known that the least squares estimator (LSE) of an AR (p) model with iid
(independent and identically distributed) noises is n1/αL (n)-consistent when the tail index α …

Confidence intervals for conditional tail risk measures in ARMA–GARCH models

Y Hoga - Journal of Business & Economic Statistics, 2019 - Taylor & Francis
ABSTRACT ARMA–GARCH models are widely used to model the conditional mean and
conditional variance dynamics of returns on risky assets. Empirical results suggest heavy …

LADE-based inference for ARMA models with unspecified and heavy-tailed heteroscedastic noises

K Zhu, S Ling - Journal of the American Statistical Association, 2015 - Taylor & Francis
This article develops a systematic procedure of statistical inference for the auto-regressive
moving average (ARMA) model with unspecified and heavy-tailed heteroscedastic noises …

Non-Gaussian quasi-likelihood estimation of SDE driven by locally stable Lévy process

H Masuda - Stochastic Processes and their Applications, 2019 - Elsevier
We address estimation of parametric coefficients of a pure-jump Lévy driven univariate
stochastic differential equation (SDE) model, which is observed at high frequency over a …