Results 31 to 40 of about 3,586 (227)

A multivariate realized GARCH model

open access: yesJournal of Econometrics
We propose a novel class of multivariate GARCH models that incorporate realized measures of volatility and correlations. The key innovation is an unconstrained vector parametrization of the conditional correlation matrix, which enables the use of factor models for correlations.
Archakov, Ilya   +2 more
openaire   +2 more sources

Ranking Multivariate GARCH Models by Problem Dimension: An Empirical Evaluation [PDF]

open access: yes
In the last 15 years, several Multivariate GARCH (MGARCH) models have appeared in the literature. Recent research has begun to examine MGARCH specifications in terms of their out-of-sample forecasting performance.
Michael McAleer, Massimiliano Caporin
core   +4 more sources

Does the fear gauge predict downside risk more accurately than econometric models? Evidence from the US stock market

open access: yesCogent Economics & Finance, 2016
This paper empirically compares the usefulness of information included in the volatility index (VIX) against several generalized autoregressive conditional heteroskedasticity (GARCH) models for predicting downside risk in the US stock market.
Chikashi Tsuji
doaj   +1 more source

On studying extreme values and systematic risks with nonlinear time series models and tail dependence measures

open access: yesStatistical Theory and Related Fields, 2021
This review paper discusses advances of statistical inference in modeling extreme observations from multiple sources and heterogeneous populations.
Zhengjun Zhang
doaj   +1 more source

Thresholds, News Impact Surfaces and Dynamic Asymmetric Multivariate GARCH [PDF]

open access: yes
DAMGARCH is a new model that extends the VARMA-GARCH model of Ling and McAleer (2003) by introducing multiple thresholds and time-dependent structure in the asymmetry of the conditional variances.
Michael McAleer, Massimiliano Caporin
core   +6 more sources

Recursive MEWMA Projections of Conditional Covolatilities in Large Portfolios [PDF]

open access: yesStatistika: Statistics and Economy Journal
Dynamic predictions of large dimensional conditional covariance matrices are considered in the context of large financial portfolios. Since numerically simple prediction methods are usually recommended for multivariate conditional covariances ...
Radek Hendrych, Tomáš Cipra
doaj   +1 more source

Modeling the interaction across international conventional and Islamic stock indices

open access: yesCogent Economics & Finance, 2021
Islamic financial instruments have been experiencing rapid growth in the last 50 years. Despite the unique motivation in formulating them, namely based on Syariah law, their movement might link to those of the conventional ones.
Abdul Hakim   +3 more
doaj   +1 more source

Modeling of the Bitcoin Volatility through Key Financial Environment Variables: An Application of Conditional Correlation MGARCH Models

open access: yesMathematics, 2021
Since the launch of Bitcoin, there has been a lot of controversy surrounding what asset class it is. Several authors recognize the potential of cryptocurrencies but also certain deviations with respect to the functions of a conventional currency. Instead,
Ángeles Cebrián-Hernández   +1 more
doaj   +1 more source

Robust ranking of multivariate GARCH models by problem dimension [PDF]

open access: yesComputational Statistics & Data Analysis, 2014
During the last 15 years, several Multivariate GARCH (MGARCH) models have appeared in the literature. Recent research has begun to examine MGARCH specifications in terms of their out-of-sample forecasting performance. We provide an empirical comparison of alternative MGARCH models, namely BEKK, DCC, Corrected DCC (cDCC), CCC, OGARCH Exponentially ...
CAPORIN, MASSIMILIANO, Michael McAleer
openaire   +6 more sources

Portfolio Optimization Using Multivariate GARCH Models: Evidence from Tehran Stock Exchange [PDF]

open access: yesتحقیقات مالی, 2011
In this paper, In order to optimize the portfolio consisting of selected industrial stocks of Petroleum products, automobiles and parts, electrical industry and extraction of minerals from Tehran Stock Exchange member, First, time – varying conditional ...
Hassan Heidari, Ahmad Molabahrami
doaj  

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