Results 1 to 10 of about 467 (180)
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 +4 more sources
تحسين التنبؤ باستخدام الجمع بين نماذج ARFIMA و GARCH (دراسة تطبيقية) Improving Forecasting Using a Combination of ARFIMA and GARCH Models ( An Applied Study). [PDF]
تهدف هذه الدراسة إلى بناء نموذج هجين يجمع بين نماذج ARFIMA و GARCH لتوقع أسعار الذهب الشهرية خلال الفترة من 2010 إلى 2025، نظرًا لما تتسم به هذه السلسلة من تقلبات وتعقيد، أظهرت اختبارات ADF وPP أن السلسلة غير ساكنة، كما أكدت تحليلات الذاكرة الطويلة مثل
فاطمة الزهراء ابراهيم ابراهيم اللاوندي +2 more
doaj +1 more source
A Forecasting Model for Japan's Unemployment Rate [PDF]
This note aims to achieve a parsimonious fractionally-integrated autoregressive and moving average (ARFIMA) model for recent time series data of Japan's unemployment rate. A brief review of the ARFIMA model is provided, leading to econometric modeling of
Takamitsu KURITA
doaj
Inflation Dynamics in the ABC (Argentina, Brazil and Chile) countries
Este trabajo evalúa la inercia y persistencia de la inflación y sus componentes para Argentina (dos períodos), Brasil y Chile utilizando modelos estacionales y fraccionalmente integrados autorregresivo de promedios móviles (modelo S-ARFIMA).
Fernando Zarzosa Valdivia
doaj +1 more source
Evaluating the Effectiveness of GARCH Models in the Estimation of Systematic Risk in listed companies of the Tehran Stock Exchange [PDF]
The stock market of each country, in addition to reflecting its economic structure, is considered as an important source of capital Circulation of that country.
nemat rastgoo, Hossein panahian
doaj +1 more source
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
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
Evaluation of Dual Long Memory Properties with Emphasizing the Skewed and Fat-Tail Distribution: Evidence from Tehran Stock Exchange [PDF]
This paper investigates the presence of long memory in the Tehran stock market, using the ARFIMA, GPH, GSP and FIGARCH models. The data set consists of daily returns, and long memory tests are carried out both for the returns and volatilities of TEPIX ...
Mohammad Javad Mohagheghnia +3 more
doaj
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
Análisis de contagios SARS COV-2 por medio de herramientas de series de tiempo
El presente artículo propone analizar y desarrollar herramientas de series de tiempo con las cuales se pueda estimar la curva de contagios de SARS-COV2 en países de Latinoamérica.
David Santiago Álzate Vélez +3 more
doaj +1 more source

