no code implementations • 15 Feb 2024 • H. Rangika Iroshani Peiris, Chao Wang, Richard Gerlach, Minh-Ngoc Tran
A semi-parametric joint Value-at-Risk (VaR) and Expected Shortfall (ES) forecasting framework employing multiple realized measures is developed.
1 code implementation • 5 Sep 2023 • Chen Liu, Minh-Ngoc Tran, Chao Wang, Richard Gerlach, Robert Kohn
This paper introduces DeepVol, a pre-trained deep learning volatility model that is more general than traditional econometric models.
no code implementations • 1 Jun 2021 • Chao Wang, Richard Gerlach
This paper proposes an innovative threshold measurement equation to be employed in a Realized-GARCH framework.
no code implementations • 12 Aug 2020 • Vica Tendenan, Richard Gerlach, Chao Wang
Rigorous tail risk forecast evaluations show that the realized EGARCH models employing the standardized skewed Student-t distribution and incorporating sub-sampled realized range are favored, compared to a range of models.
no code implementations • 23 Jan 2020 • Zhengkun Li, Minh-Ngoc Tran, Chao Wang, Richard Gerlach, Junbin Gao
Value-at-Risk (VaR) and Expected Shortfall (ES) are widely used in the financial sector to measure the market risk and manage the extreme market movement.
no code implementations • 11 Feb 2019 • Bingxin Zhou, Junbin Gao, Minh-Ngoc Tran, Richard Gerlach
Gaussian variational approximation is a popular methodology to approximate posterior distributions in Bayesian inference especially in high dimensional and large data settings.
no code implementations • 9 Feb 2019 • Nick James, Roman Marchant, Richard Gerlach, Sally Cripps
Discrimination between non-stationarity and long-range dependency is a difficult and long-standing issue in modelling financial time series.
no code implementations • 5 Jul 2018 • Chao Wang, Richard Gerlach, Qian Chen
One-day-ahead VaR and ES forecasting results favor the proposed models, especially when incorporating the sub-sampled Realized Variance and the sub-sampled Realized Range in the model.
no code implementations • 8 May 2018 • Maria Jofre, Richard Gerlach
Accounting fraud is a global concern representing a significant threat to the financial system stability due to the resulting diminishing of the market confidence and trust of regulatory authorities.