Results 111 to 120 of about 3,061,654 (200)

Daily Emissions of CO2 in the World: A Fractional Integration Approach

open access: yesEconometrics
In this article, daily CO2 emissions for the years 2019–2022 are examined using fractional integration for Brazil, China, EU-27 (and the UK), India, and the USA.
Luis Alberiko Gil-Alana, Carlos Poza
doaj   +1 more source

Air Pollution in 88 US Metropolitan Areas: Trends and Persistence

open access: yesAtmosphere
This paper analyses trends and persistence in air pollution levels in 88 US metropolitan areas using fractional integration methods. The results indicate that the differencing parameter d is higher than 0 in 38 of the series, which supports the ...
Guglielmo Maria Caporale   +3 more
doaj   +1 more source

Persistence in Convergence [PDF]

open access: yes
In this paper, we examine the convergence hypothesis using a long memory framework that allows for structural breaks and the non reliance on a benchmark country.
M. Ege Yazgan, Thanasis Stengos
core  

Challenging the Efficient Market Hypothesis: Multifractal Insights into Price – Volume Cross-Correlations in the S&P 500

open access: yesScientific Annals of Economics and Business
This study investigates the multifractal behaviour of prices, trading volume, and their cross-correlations in the S&P 500 index over the 2004–2024 period.
Sermet Doğan, Sinan Aytekin
doaj   +1 more source

The master long memory

open access: yesІнтродукція Рослин, 2002
V.G. Maevskaja   +3 more
doaj   +1 more source

On the Efficacy of ARFIMA, ARTFIMA, and MARFIMA Models in Forecasting Nigerian Crude Oil Prices

open access: yesUMYU Scientifica Journal
This study presents a comprehensive evaluation of three advanced long-memory time series models— the Autoregressive Fractionally Integrated Moving Average (ARFIMA), the Autoregressive Tempered Fractionally Integrated Moving Average (ARTFIMA), and the ...
Musa Tasi’u   +3 more
doaj   +1 more source

Long Agricultural Futures Prices: ARCH, Long Memory, or Chaos Processes? [PDF]

open access: yes
Price series that are 21.5 years long for six agricultural futures markets, corn, soybeans, wheat, hogs, coffee and sugar, possess characteristics consistent with nonlinear dynamics.
Anning Wei, Raymond M. Leuthold
core  

Long memory and non-linearity in Stock Markets [PDF]

open access: yes
In this paper the long memory and non-linear properties of share prices in the UK’s Stock Exchange and AIM are explored. The results suggest that the most commonly traded shares exhibit long memory thus raising interesting issues about the validity of ...
Bond, Derek, Dyson, Kenneth
core   +1 more source

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