Results 11 to 20 of about 4,901 (213)

Modeling Long Memory Volatilities of Nigeria Selected Macro Economic Variables with Arfima and Arfima Figarch

open access: yesCumhuriyet Science Journal
The research delved into analysing the stochastic characteristics of Nigeria's Real GDP, the exchange rate of the Naira to US Dollar, and the inflation rate employing Autoregressive fractionally integrated moving average (ARFIMA) and the Autoregressive ...
Ayoade Adewole
doaj   +3 more sources

BOOTSTRAP ASSISTED SPECIFICATION TESTS FOR THE ARFIMA MODEL [PDF]

open access: yesEconometric Theory, 2011
This paper proposes bootstrap assisted specification tests for the autoregressive fractionally integrated moving average model based on the BartlettTp-process with estimated parameters whose limiting distribution under the null depends on the estimated model and the estimation method employed.
Delgado, Miguel A.   +2 more
openaire   +2 more sources

Forecasting realised volatility using ARFIMA and HAR models [PDF]

open access: yesQuantitative Finance, 2019
Recent literature provides mixed empirical evidence with respect to the forecasting performance of ARFIMA and HAR models. This paper compares the forecasting performance of both models using high frequency data of 100 stocks representing 10 business sectors for the period 2000-2010.
Marwan Izzeldin   +3 more
openaire   +2 more sources

SMALL-SAMPLE LIKELIHOOD-BASED INFERENCE IN THE ARFIMA MODEL [PDF]

open access: yesEconometric Theory, 2000
The autoregressive fractionally integrated moving average (ARFIMA) model has become a popular approach for analyzing time series that exhibit long-range dependence. For the Gaussian case, there have been substantial advances in the area of likelihood-based inference, including development of the asymptotic properties of the maximum likelihood ...
Offer Lieberman   +2 more
openaire   +4 more sources

Peramalan Kurs Jual Uang Kertas Mata Uang Singapore Dollar (SGD) terhadap Rupiah Menggunakan Model ARFIMA (Autoregressive Fractionally Integrated Moving Average)

open access: yesKubik, 2015
Model ARFIMA (Autoregressive Fractionally Integrated Moving Average) merupakan pengembangan dari model ARIMA yang pertama kali dikenalkan oleh Granger dan Joyeux (1980). Sedangkan Hosking (1981) memperkenalkan sifat jangka panjang (long memory) pada data
Rini Cahyandari, Rima Erviana
doaj   +1 more source

MODELLING FOR THE WAVELET COEFFICIENTS OF ARFIMA PROCESSES [PDF]

open access: yesJournal of Time Series Analysis, 2014
AbstractWe consider a model for the discrete nonboundary wavelet coefficients of autoregressive fractionally integrated moving average (ARFIMA) processes in each scale. Because the utility of the wavelet transform for the long‐range dependent processes, which many authors have explained in semi‐parametrical literature, is approximating the transformed ...
openaire   +1 more source

Estimation Parameter d in Autoregressive Fractionally Integrated Moving Average Model in Predicting Wind Speed

open access: yesInPrime, 2019
Wind speed is one of the most important weather factors in the landing and takeoff process of airplane because it can affect the airplane's lift. Therefore, we need a model to predict the wind speed in an area.
Devi Ila Octaviyani   +2 more
doaj   +1 more source

Forecasting energy futures volatility based on the unbiased extreme value volatility estimator

open access: yesIIMB Management Review, 2017
This paper uses the opening, high, low, and closing prices of five energy futures to estimate and model volatility based on the unbiased extreme value volatility estimator (the Add RS estimator).
Dilip Kumar
doaj   +1 more source

Predicting BRICS stock returns using ARFIMA models [PDF]

open access: yesApplied Financial Economics, 2014
This article examines the existence of long memory in daily stock market returns from Brazil, Russia, India, China and South Africa (BRICS) countries and also attempts to shed light on the efficacy of autoregressive fractionally integrated moving average (ARFIMA) models in predicting stock returns.
Aye, Goodness Chioma   +5 more
openaire   +2 more sources

Wavelet based deseasonalization for modelling and forecasting of daily discharge series considering long range dependence

open access: yesJournal of Hydrology and Hydromechanics, 2014
Short term streamflow forecasting is important for operational control and risk management in hydrology. Despite a wide range of models available, the impact of long range dependence is often neglected when considering short term forecasting.
Szolgayová Elena   +3 more
doaj   +1 more source

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