Results 21 to 30 of about 3,916 (205)

Forecasting the Jordanian stock index: modelling asymmetric volatility and distribution effects within a GARCH framework

open access: yesCopernican Journal of Finance & Accounting, 2015
The modelling of market returns can be especially problematical in emerging and frontier financial markets given the propensity of their returns to exhibit significant non-normality and volatility asymmetries.
Heitham Al-Hajieh   +3 more
doaj   +3 more sources

Asymmetry and Leverage in Conditional Volatility Models

open access: yesEconometrics, 2014
The three most popular univariate conditional volatility models are the generalized autoregressive conditional heteroskedasticity (GARCH) model of Engle (1982) and Bollerslev (1986), the GJR (or threshold GARCH) model of Glosten, Jagannathan and Runkle ...
Michael McAleer
doaj   +1 more source

Optimizing the Model Investment Portfolios Based on Coherent Risk Measures under Conditions of Asymmetric Financial Market Volatility [PDF]

open access: yesProblemi Ekonomiki
This article is dedicated to the optimization of model investment portfolios by integrating asymmetric volatility forecasting using GJR-GARCH models, considering the minimization of Conditional Value at Risk (CVaR).
Manoilenko Oleksandr V.   +2 more
doaj   +1 more source

Day-of-the-week and month-of-the-year effects on French Small-Cap Volatility: the role of asymmetry and long memory [PDF]

open access: yesEastern Journal of European Studies, 2019
Small-cap stocks are characterized by high volatility and offer investors the opportunity to earn higher returns. This paper empirically investigates the impact of the day-of-the-week and the month-of-the year effects on the volatility of daily and ...
Mohamed CHIKHI   +2 more
doaj  

Time Series Analysis Using Wavelets And Gjr-Garch Models

open access: yes, 2012
Publication in the conference proceedings of EUSIPCO, Bucharest, Romania ...
Borda, Monica   +2 more
openaire   +1 more source

Quantifying Foreign Exchange Risk in the Selected Listed Sectors of the Johannesburg Stock Exchange: An SV-EVT Pairwise Copula Approach

open access: yesInternational Journal of Financial Studies, 2022
This paper attempted to apply an EVT-based pairwise copula method for modelling risk interaction between foreign exchange rates and equity indices of the Johannesburg Stock Exchange (JSE) and to model the dependence structure of the underlying assets ...
Joel Hinaunye Eita   +1 more
doaj   +1 more source

Testing and Predicting Volatility Spillover—A Multivariate GJR-GARCH Approach

open access: yesTheoretical Economics Letters, 2019
This paper proposes a multivariate VAR-BEKK-GJR-GARCH volatility model to assess the dynamic interdependence among stock, bond and money market returns and volatility of returns. The proposed model allows for market interaction which provides useful information for pricing securities, measuring value-at-risk (VaR), and asset allocation and ...
Hira Aftab   +3 more
openaire   +2 more sources

Forecasting Performance of Asymmetric GARCH Stock Market Volatility Models

open access: yesEast Asian Economic Review, 2009
We investigate the asymmetry between positive and negative returns in their effect on conditional variance of the stock market index and incorporate the characteristics to form an out-of-sample volatility forecast.
Hojin Lee
doaj   +1 more source

Estimating Value at Risk of Portfolio of Oil and Gold by Copula-GARCH Method [PDF]

open access: yesتحقیقات مالی, 2014
Copula functions are powerful tools that describe dependence structure of multi- dimension random variables and are considered as one of the newest tools for risk management.
Saeed Fallahpour, Ehsan Ahmadi
doaj   +1 more source

Social media and financial markets: The impact of Twitter sentiment on the Johannesburg Stock Exchange

open access: yesModern Finance
This study examines the effect of Twitter-derived investor sentiment on stock market volatility in South Africa using daily data for the JSE All Share Index from 2016 to 2023.
Thiasha Naidoo
doaj   +1 more source

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