Results 1 to 10 of about 184,678 (326)

Stationarity, non-stationarity and early warning signals in economic networks [PDF]

open access: yesJournal of Complex Networks, 2014
Economic integration, globalization and financial crises represent examples of processes whose understanding requires the analysis of the underlying network structure.
Garlaschelli, Diego, Squartini, Tiziano
core   +6 more sources

Quantifying Non-Stationarity with Information Theory [PDF]

open access: goldEntropy, 2021
We introduce an index based on information theory to quantify the stationarity of a stochastic process. The index compares on the one hand the information contained in the increment at the time scale τ of the process at time t with, on the other hand ...
Carlos Granero-Belinchón   +2 more
doaj   +2 more sources

An Overview of Kriging and Cokriging Predictors for Functional Random Fields

open access: yesMathematics, 2023
This article presents an overview of methodologies for spatial prediction of functional data, focusing on both stationary and non-stationary conditions.
Ramón Giraldo   +2 more
doaj   +1 more source

Are the current accounts of Asian-5 economies mean-reverting? New evidence from Fourier panel stationarity tests

open access: yesCogent Economics & Finance, 2023
This study offers a novel examination of the mean-reversion properties of the current account balances, expressed as a percentage of GDP, for the Asian-5 economies: Indonesia, Korea, Malaysia, the Philippines, and Thailand.
Jamal Husein, S. Murat Kara, Chuck Pier
doaj   +1 more source

Testing the Sustainability of Fiscal Policy during the Portuguese First Republic Using Stationary and Cointegration Tests

open access: yesEconomies, 2023
The Portuguese First Republic (1910–1926) was marked by significant instability at the most diverse levels. With a special focus on the financial dimension of this period, the objective of this paper is to test the sustainability of the Portuguese fiscal
Ricardo Ferraz
doaj   +1 more source

TIME SERIES TRENDS OF STREAMFLOW AND RAINFALL IN THE SANTO ANTÔNIO RIVER BASIN, BRAZIL [PDF]

open access: yesEngenharia Agrícola, 2021
Detecting trends in streamflow and rainfall series can have great significance for proper water resource management. Thus, the objective of this study was to analyze the trends of historical streamflow and rainfall series using nonparametric statistical ...
Fernanda L. V. Ferreira   +4 more
doaj   +1 more source

Stationarization via surrogates [PDF]

open access: yesJournal of Statistical Mechanics: Theory and Experiment, 2009
The surrogate data method, classically used for non-linearity tests, amounts to the use of some constrained noise providing a reference for statistical testing. It is revisited here as a method for stationarization and this feature is put forward in the context of non-stationarity testing.
Borgnat, Pierre, Flandrin, Patrick
openaire   +1 more source

Economic Analysis of the Determinants of Citrus Exports in South Africa Post the Era of Trade Liberalisation

open access: yesWieś i Rolnictwo, 2023
The purpose of the study was to analyse the determinants of South African citrus exports post era of trade liberalisations using secondary data from 1996 to 2018.
Mushoni Bulagi   +2 more
doaj   +1 more source

A statistical test of independence in choice data with small samples

open access: yesJudgment and Decision Making, 2012
This paper develops tests of independence and stationarity in choice data collected with small samples. The method builds on the approach of Smith and Batchelder (2008).
Michael H. Birnbaum
doaj   +1 more source

A Novel Approach for Segment-Length Selection Based on Stationarity to Perform Effective Connectivity Analysis Applied to Resting-State EEG Signals

open access: yesSensors, 2022
Connectivity among different areas within the brain is a topic that has been notably studied in the last decade. In particular, EEG-derived measures of effective connectivity examine the directionalities and the exerted influences raised from the ...
Leonardo Góngora   +4 more
doaj   +1 more source

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