Results 61 to 70 of about 2,079 (206)

Volatility forecasts: a continuous time model versus discrete time models [PDF]

open access: yes, 2006
This paper compares empirically the forecasting performance of a continuous time stochastic volatility model with two volatility factors (SV2F) to a set of alternative models (GARCH, FIGARCH, HYGARCH, FIEGARCH and Component GARCH).
Veiga, Helena
core   +1 more source

Enhancing Forecasting Accuracy in Commodity and Financial Markets: Insights from GARCH and SVR Models

open access: yesInternational Journal of Financial Studies
The aim of this study is to enhance the understanding of volatility dynamics in commodity returns, such as gold and cocoa, as well as the financial market index S&P500. It provides a comprehensive overview of each model’s efficacy in capturing volatility
Apostolos Ampountolas
doaj   +1 more source

A new hyperbolic GARCH model [PDF]

open access: yes, 2015
There are two commonly used hyperbolic GARCH processes, the FIGARCH and HYGARCH processes, in modeling the long-range dependence in volatility. However, the FIGARCH process always has infinite variance, and the HYGARCH model has a more complicated form ...
Li, G, Li, M, Li, WK
core   +1 more source

Application of FIGARCH and EWMA Models on Stock Indices PX and BUX [PDF]

open access: yesActa Oeconomica Pragensia, 2011
Volatility of the financial time series belongs to the crucial estimated parameters in finance (e.g. in risk management, derivative pricing). It is well known, that volatility varies in time, so that new approaches of volatility modeling have appeared.
openaire   +1 more source

Do Crude Oil Prices Drive the Relationship between Stock Markets of Oil-Importing and Oil-Exporting Countries?

open access: yesEconomies, 2019
The impact that oil market shocks have on stock markets of oil-related economies has several implications for both domestic and foreign investors. Thus, we investigate the role of the oil market in deriving the dynamic linkage between stock markets of ...
Manel Youssef, Khaled Mokni
doaj   +1 more source

INTERNATIONAL TOURISTS’ EXPENDITURES IN THAILAND: A MODELLING OF THE ARFIMA-FIGARCH APPROACH [PDF]

open access: yesAnnals of the University of Petrosani: Economics, 2010
Forecasting is an essential analytical tool for tourism policy andplanning. This paper focuses on forecasting methods based on ARFIMA(p,d,q)-FIGARCH(p,d,q). Secondary data was used to produce forecasts of international tourists’expenditures in Thailand for the period 2009-2010.
Kanchana Chokethaworn   +5 more
openaire   +1 more source

A hybrid ExpAR-FIGARCH-ANN model for time series forecasting

open access: yesJournal of Statistical Sciences and Computational Intelligence
Financial time series forecast is challenging due to nonlinear mean dynamics, volatility clustering, and long-memory effects. Traditional hybrid models such as Autoregressive Integrated Moving Average – Generalised Autoregressive Conditional Heteroscedasticity (ARIMA–GARCH) and Fractional Generalised Integrated Autoregressive Conditional ...
Abba Bello Muhammad   +5 more
openaire   +1 more source

Effects of Financial Crises on the Long Memory Volatility Dependency of Foreign Exchange Rates: the Asian Crisis vs. the Global Crisis

open access: yesEast Asian Economic Review, 2014
This paper examines the effects of financial crises on the long memory volatility dependency of daily exchange returns focusing on the Asian crisis in 97-98 and the Global crisis in 08-09.
Young Wook Han
doaj   +1 more source

On the Predictability of Green Finance Markets: An Assessment Based on Fractal and Shannon Entropy

open access: yesFractal and Fractional
Econophysics is an interdisciplinary field that applies physics concepts to economic and financial systems. By utilizing tools such as statistical physics, including fractal analysis and entropy measures, econophysics helps model the complex and non ...
Sonia Benghiat, Salim Lahmiri
doaj   +1 more source

Volatility dynamics of stock returns, liquidity and exchange rates in ASEAN Countries [PDF]

open access: yesAccounting
In this study, we examined the volatility trend of stock return in eight ASEAN stock markets. These includes the Singapore Exchange (SGX), Bursa Malaysia Stock Exchange (YSX), the Stock Exchange of Thailand (SET), Indonesia stock exchange, the Vietnam ...
David Umoru   +3 more
doaj   +1 more source

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