Results 81 to 90 of about 2,079 (206)

Forecasting volatility and volume in the Tokyo stock market: The advantage of long memory models [PDF]

open access: yes
We investigate the predictability of both volatility and volume for a large sample of Japanese stocks. The particular emphasis of this paper is on assessing the performance of long memory time series models in comparison to their short-memory ...
Kaizoji, Taisei, Lux, Thomas
core  

The Use of Weather Variables in the Modeling of Demand for Electricity in One of the Regions in the Southern Poland [PDF]

open access: yes
The main objective of the paper is the verification of usefulness of the ARFIMA-FIGARCH class models in the description of tendencies in the energy consumption in a selected region of the southern Poland taking into consideration weather variables ...
Aneta Wlodarczyk, Marcin Zawada
core  

How Risky Is the Value at Risk? [PDF]

open access: yes
The recent financial crisis has raised numerous questions about the accuracy of value-at-risk (VaR) as a tool to quantify extreme losses. In this paper we present empirical evidence from assessing the out-of-sample performance and robustness of VaR ...
Roxana Chiriac, Winfried Pohlmeier
core  

Symmetric and asymmetric GARCH estimations of the impact of oil price uncertainty on output growth: evidence from the G7. [PDF]

open access: yesLett Spat Resour Sci, 2023
Alao RO   +5 more
europepmc   +1 more source

Forecasting the conditional volatility of oil spot and futures prices with structural breaks and long memory models [PDF]

open access: yes
This paper investigates whether structural breaks and long memory are relevant features in modeling and forecasting the conditional volatility of oil spot and futures prices using three GARCH-type models, i.e., linear GARCH, GARCH with structural breaks ...
Amine Lahiani   +2 more
core  

Volatility Spillovers Between the U.S. and Romanian Markets: The BET–SFT-500 Dynamic Under Political Uncertainty

open access: yesRisks
This paper analyzes the volatility relationship between the Romanian BET index and the U.S. SFT-500 index during the period 2019–2024, with a particular focus on the impact of political and geopolitical shocks.
Kamer-Ainur Aivaz   +5 more
doaj   +1 more source

Long Memory Persistence in the Factor of Implied Volatility Dynamics [PDF]

open access: yes
The volatility implied by observed market prices as a function of the strike and time to maturity form an Implied Volatility Surface (IV S). Practical applications require reducing the dimension and characterize its dynamics through a small number of ...
Julius Mungo, Wolfgang Härdle
core  

The multi-fractal model of asset returns : its estimation via GMM and its use for volatility forecasting [PDF]

open access: yes
Multi-fractal processes have been proposed as a new formalism for modeling the time series of returns in finance. The major attraction of these processes is their ability to generate various degrees of long memory in different powers of returns - a ...
Lux, Thomas
core  

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