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

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. According to the findings, all series exhibit long memory mean-reversion tendencies, with orders of integration ranging between 0.22 in th...

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Bibliographic Details
Authors: Gil-Alana, Luis Alberiko, Gil Alana, Luis A., Poza, Carlos, Poza Lara, Carlos
Format: article
Publication Date:2025
Country:España
Institution:Universidad Francisco de Vitoria
Repository:DDFV. Repositorio Institucional de la Universidad Francisco de Vitoria
Language:English
OAI Identifier:oai:ddfv.ufv.es:10641/6330
Online Access:https://hdl.handle.net/10641/6330
Access Level:Open access
Keyword:CO emissions
fractional integration
long memory
persistence
Persistence
Fractional integration
CO2 emissions
Long memory
Economics and Econometrics
Yes
yes
Description
Summary: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. According to the findings, all series exhibit long memory mean-reversion tendencies, with orders of integration ranging between 0.22 in the case of India (with white noise errors) and 0.70 for Brazil (under autocorrelated disturbances). Nevertheless, the differencing parameter estimates are all considerably below 1, which supports the theory of mean reversion and transient shocks. These results suggest the need for a greater intensification of green policies complemented with economic structural reforms to achieve the zero-emissions target by 2050.