Results 11 to 20 of about 5,691 (212)

The hybrid model of autoregressive integrated moving average and fuzzy time series Markov chain on long-memory data

open access: yesFrontiers in Applied Mathematics and Statistics, 2022
IntroductionThe price of crude oil as an essential commodity in the world economy shows a pattern and identifies the component factors that influence it in the short and long term.
Dodi Devianto   +4 more
doaj   +1 more source

Prueba de hipótesis sobre la existencia de una raíz fraccional en una serie de tiempo no estacionaria

open access: yesLecturas de Economía, 2013
Prueba de hipótesis sobre la existencia de una raíz fraccional en una serie de tiempo no estacionaria   Resumen: En este trabajo se propone una modificación de la prueba de hipótesis propuesta por Castaño, Gómez y Gallón (2008) para determinar la ...
Diego Lemus, Elkin Castaño
doaj   +5 more sources

Fractional differencing in stock market price and online presence of global tourist corporations [PDF]

open access: yesJournal of Economics Finance and Administrative Science, 2019
Purpose - This work aims to explore the behavior of stock market prices according to the autoregressive fractional differencing integrated moving average model.
Francisco Flores-Muñoz   +2 more
doaj   +1 more source

PEMODELAN DATA HARGA CABAI DENGAN PENDEKATAN DERET WAKTU FRAKSIONAL ARFIMA

open access: yesJurnal Lebesgue, 2023
Long-memory is a type of time series data that has a high correlation between long observation times. This can be seen from the autocorrelation function where the lag falls slowly over a long period. Such long-memory data can be modeled in the form of an
Elsa Wahyuni   +2 more
doaj   +1 more source

Combining long memory and level shifts in modeling and forecasting the volatility of asset returns [PDF]

open access: yes, 2017
We propose a parametric state space model of asset return volatility with an accompanying estimation and forecasting framework that allows for ARFIMA dynamics, random level shifts and measurement errors.
Perron, Pierre, Varneskov, Rasmus T.
core   +1 more source

Stochastic Inequalities for the Run Length of the EWMA Chart for Long-Memory Processes

open access: yesRevstat Statistical Journal, 2019
In this paper the properties of the modified EWMA control chart for detecting changes in the mean of an ARFIMA process are discussed. The central question is related to the false alarm probability and its behavior for different autocorrelation ...
Yarema Okhrin , Wolfgang Schmid
doaj   +1 more source

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

Minimum distance estimation of ARFIMA processes

open access: yesComputational Statistics & Data Analysis, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zevallos, M., Palma M., Wilfredo
openaire   +4 more sources

Evaluating the Effectiveness of GARCH Models in the Estimation of Systematic Risk in listed companies of the Tehran Stock Exchange [PDF]

open access: yesJournal of Asset Management and Financing, 2020
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

Time-varying persistence in US inflation [PDF]

open access: yes, 2016
The persistence property of inflation is an important issue not only for economists, but especially for central banks, given that the degree of inflation persistence determines the extent to which central banks can control inflation. Further, not only is
Caporin, Massimiliano, Gupta, Rangan
core   +2 more sources

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