Results 21 to 30 of about 744,108 (349)

Modelling Stock Market Volatility During the COVID-19 Pandemic: Evidence from BRICS Countries

open access: yesManaging Global Transitions, 2023
The objective of the research paper is to identify the stock market volatility pattern of BRICS countries during the outbreak of the COVID-19 pandemic.
Karunanithy Banumathy
doaj   +1 more source

Exploring Advanced GARCH Models for Analyzing Asymmetric Volatility Dynamics for the Emerging Stock Market in Hungary: An Empirical Case Study [PDF]

open access: yesAnnals of Dunarea de Jos University. Fascicle I : Economics and Applied Informatics
The study was conducted on BUX Index volatility for the post-2008 (from 2011) global financial crisis period using advanced GARCH models (GARCH, TGARCH, EGARCH, IGARCH, PARCH, APARCH).
Shreevastava Aman   +6 more
doaj   +1 more source

Recent Examination of Energy Markets Volatility

open access: yesStudies in Business and Economics, 2023
The main aim of the paper is to examine if the energy market (crude oil, gas and electricity) realized volatility exhibits a symmetric or an asymmetric behaviour, for certain commodities over the period May 2012 – August 2022.
Jude Octavian   +2 more
doaj   +1 more source

Modeling Univariate and Multivariate Stochastic Volatility in R with stochvol and factorstochvol

open access: yesJournal of Statistical Software, 2021
Stochastic volatility (SV) models are nonlinear state-space models that enjoy increasing popularity for fitting and predicting heteroskedastic time series.
Darjus Hosszejni, Gregor Kastner
doaj   +1 more source

Leverage Effect and the Role of Debt Ratio in Companies Listed on the Tehran Stock Exchange [PDF]

open access: yesفصلنامه پژوهش‌های اقتصادی ایران
The negative correlation between an asset’s volatility and its return is known as leverage effect. This relationship is explained by the effect of a firm’s equity return on the degree of leverage in its capital structure.
Teimur Mohammadi   +2 more
doaj   +1 more source

Unusual behavior: Reversed Leverage Effect Bias [PDF]

open access: yesMathematics and Modeling in Finance, 2021
According to the literature on risk, bad news induces higher volatility than good news. Although parametric procedures used for conditional variance modeling are associated with model risk, this may affect the volatility and conditional value at risk ...
Saeid Tajdini   +2 more
doaj   +1 more source

Maximum Likelihood Inference for Asymmetric Stochastic Volatility Models

open access: yesEconometrics, 2022
In this paper, we propose a new method for estimating and forecasting asymmetric stochastic volatility models. The proposal is based on dynamic linear models with Markov switching written as state space models.
Omar Abbara, Mauricio Zevallos
doaj   +1 more source

Agent-based model with asymmetric trading and herding for complex financial systems [PDF]

open access: yes, 2013
Background: For complex financial systems, the negative and positive return-volatility correlations, i.e., the so-called leverage and anti-leverage effects, are particularly important for the understanding of the price dynamics.
Chen, Jun-jie, Tan, Lei, Zheng, Bo
core   +4 more sources

Effectively Leveraging Attributes for Visual Similarity [PDF]

open access: yes2021 IEEE/CVF Conference on Computer Vision and Pattern Recognition Workshops (CVPRW), 2021
Accepted to ICCV ...
Mishra, Samarth   +5 more
openaire   +2 more sources

Leveraging Review Properties for Effective Recommendation [PDF]

open access: yesProceedings of the Web Conference 2021, 2021
To be published in the International World Wide Web Conference (WWW ...
Wang, Xi, Ounis, Iadh, Macdonald, Craig
openaire   +2 more sources

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