Results 11 to 20 of about 1,495 (237)

Spatio-Temporal Generalized Autoregressive Conditional Heteroskedasticity Models

open access: green, 2016
This thesis presents a spatio-temporal extension of the GARCH process with a specific spatial dependence structure. Different simulation and estimation techniques are developed. Assuming a circular spatial structure at each time point, gives a closed and finite set of variables at each point in time, making the spatio-temporal process adapted in the ...
Sondre Hølleland
openalex   +3 more sources

Multivariate Autoregressive Conditional Heteroskedasticity with Smooth Transitions in Conditional Correlations [PDF]

open access: green, 2005
In this paper we propose a new multivariate GARCH model with time-varying conditional correlation structure. The approach adopted here is based on the decomposition of the covariances into correlations and standard deviations. The time-varying conditional correlations change smoothly between two extreme states of constant correlations according to an ...
Annastiina Silvennoinen   +1 more
openalex   +2 more sources

Quantification of the stock market value at risk by using FIAPARCH, HYGARCH and FIGARCH models

open access: yesData Science in Finance and Economics, 2023
The South African financial market is developing with periods of high and low volatility. Employing an adequate volatility model is essential to manage market risk.
Moses Khumalo   +2 more
doaj   +1 more source

Periodic Autoregressive Conditional Heteroscedasticity [PDF]

open access: yesJournal of Business & Economic Statistics, 1996
Most high-frequency asset returns exhibit seasonal volatility patterns. This article proposes a new class of models featuring periodicity in conditional heteroscedasticity explicitly designed to capture the repetitive seasonal time variation in the second-order moments. This new class of periodic autoregressive conditional heteroscedasticity, or P-ARCH,
Bollerslev, T, Ghysels, E
openaire   +2 more sources

A Study on Cryptocurrency Log-Return Price Prediction Using Multivariate Time-Series Model

open access: yesAxioms, 2022
Cryptocurrencies are highly volatile investment assets and are difficult to predict. In this study, various cryptocurrency data are used as features to predict the log-return price of major cryptocurrencies. The original contribution of this study is the
Sang-Ha Sung   +3 more
doaj   +1 more source

Short-term user load forecasting based on GARCH-M family model with different distributions

open access: yes电力工程技术, 2022
Power load forecasting is one of the basic tasks power system research,and time series analysis is currently the most widely used forecasting method. Aiming at the fluctuation and the characteristics of peak and thick tail of user daily load time series ...
WANG Chen, YE Jiangming, HE Jiahong
doaj   +1 more source

Probabilistic Forecasting of Wind Power Generation Using Online LASSO VAR and EGARCH Model

open access: yesShanghai Jiaotong Daxue xuebao, 2023
Wind power generation has uncertainty due to the high fluctuation of wind speed. In traditional wind power prediction models, the uncertainty is measured by normal distribution with zero mean and constant variance.
WANG Peng, LI Yanting, ZHANG Yu
doaj   +1 more source

Dynamic Volatility Modeling of Indonesian Insurance Company Stocks

open access: yesJurnal Ekonomi dan Studi Pembangunan, 2022
The Indonesian capital market is one of the investment destination countries for investors in developed countries. The development of economic conditions in Indonesia itself is considered suitable for investors to invest.
Budiandru Budiandru
doaj   +1 more source

Mildly Explosive Autoregression Under Stationary Conditional Heteroskedasticity [PDF]

open access: yesJournal of Time Series Analysis, 2018
A limit theory is developed for mildly explosive autoregressions under stationary (weakly or strongly dependent) conditionally heteroskedastic errors. The conditional variance process is allowed to be stationary, integrable and mixingale, thus encompassing general classes of generalized autoregressive conditional heteroskedasticity‐type or stochastic ...
Arvanitis, Stelios, Magdalinos, Tassos
openaire   +3 more sources

Bootstrapping Autoregressions with Conditional Heteroskedasticity of Unknown Form [PDF]

open access: yesSSRN Electronic Journal, 2002
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
GONÇALVES, Silvia, KILIAN, Lutz
openaire   +6 more sources

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