Results 21 to 30 of about 6,227 (165)

Equity Risk: Measuring Return Volatility Using Historical High-Frequency Data

open access: yesStudies in Business and Economics, 2019
Market Volatility has been investigated at great lengths, but the measure of historical volatility, referred to as the relative volatility, is inconsistent.
Alan Chow, Kyre Lahtinen
doaj   +1 more source

Forecasting realized volatility through financial turbulence and neural networks

open access: yesEconomics and Business Review, 2023
This paper introduces and examines a novel realized volatility forecasting model that makes use of Long Short-Term Memory (LSTM) neural networks and the risk metric financial turbulence (FT).
Souto Hugo Gobato, Moradi Amir
doaj   +1 more source

Comparing GARCH Models by Introducing Fuzzy Asymmetric Realized GARCH [PDF]

open access: yesمدلسازی اقتصادسنجی, 2018
Estimation of conditional variance has lots of application reflecting economic, especially financial economics, social economics and political economics’ risk and volatility research.
Esmaiel Abounoori, Mohammad Amin Zabol
doaj   +1 more source

Using Daily Stock Returns to Estimate the Unconditional and Conditional Variances of Lower-Frequency Stock Returns

open access: yesRisks
If intraday price data are unavailable, then using daily returns to construct realized measures of the variances of lower-frequency returns is a natural substitute for using high-frequency returns in this context.
Chris Kirby
doaj   +1 more source

Bivariate Volatility Modeling with High-Frequency Data

open access: yesEconometrics, 2019
We propose a methodology to include night volatility estimates in the day volatility modeling problem with high-frequency data in a realized generalized autoregressive conditional heteroskedasticity (GARCH) framework, which takes advantage of the natural
Marius Matei, Xari Rovira, Núria Agell
doaj   +1 more source

FORECASTING THE REALIZED VOLATILITY OF ISLAMIC EQUITIES USING MULTIVARIATE HAR-TYPE MODELS

open access: yesThe International Journal of Banking and Finance
This study proposes nine multivariate intraday models using various realized variation measures with the aim to improve volatility forecasting in the Islamic stock market in Malaysia using a dataset from 1st April 2008 to 31st March 2018.
Sew Lai Ng   +3 more
doaj   +1 more source

Stock Market Synchronization and Stock Volatility: The Case of an Emerging Market

open access: yesRevista Mexicana de Economía y Finanzas Nueva Época REMEF, 2022
The purpose of this paper is to study the effect of stock market synchronization on the volatility of its component assets. For this objective, we calculate the stock market's synchronization using the Minimum Spanning Tree Length (MSTL) network analysis
Nicolás Magner Pulgar   +2 more
doaj   +1 more source

Modeling of Returns and Trading Volume by Regime Switching Copulas

open access: yesManagerial Economics, 2013
The structure of links between realized volatility and trading volume can be reflected by regime switching copulas. The estimation by means of copula based regime switching models delivered results concerning the interdependencies between realized return
Henryk Gurgul   +2 more
doaj   +1 more source

Forecast Combinations in the Presence of Structural Breaks: Evidence from U.S. Equity Markets

open access: yesMathematics, 2018
Realized volatility, building on the theory of a simple continuous time process, has recently received attention as a nonparametric ex-post estimate of the return variation. This paper addresses the problem of parameter instability due to the presence of
Davide De Gaetano
doaj   +1 more source

GARMA, HAR and Rules of Thumb for Modelling Realized Volatility

open access: yesRisks, 2023
This paper features an analysis of the relative effectiveness, in terms of the Adjusted R-Square, of a variety of methods of modelling realized volatility (RV), namely the use of Gegenbauer processes in Auto-Regressive Moving Average format, GARMA, as ...
David Edmund Allen, Shelton Peiris
doaj   +1 more source

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