Multifractal Dynamics of COVID-19 Vaccines in Europe

22 Pages Posted: 30 Aug 2022

See all articles by Leonardo HS Fernandes

Leonardo HS Fernandes

Universidade Federal Rural de Pernambuco (UFRPE)

Fernando Henrique Antunes de Araujo

Instituto Federal da Paraíba

Date Written: August 20, 2022

Abstract

This research explores the multifractal dynamics of the daily number of vaccinated time series for COVID-19, considering six European countries (Belgium, Denmark, France, Germany, Greece, and Italy) using the Multifractal Detrended Fluctuations Analysis (MF-DFA). We calculate the multifractal spectrum 𝑓(𝛼) and apply a fourth-degree polynomial regression fit to estimate the complexity parameters that describe the degree of multifractality of the underlying process. We find that the multifractal dynamics of all these countries are characterized by strongly anti-persistent behaviour or anti-persistent long-term correlations (�&.-|lt; 0.5) a lower degree of multifractality, and small fluctuations are dominant in the multifractal spectrum. Our findings shed light on the period of immunization of the population that adhered to the vaccination campaigns is short and that the application of new doses of vaccines must comply with this phenomenology to keep the people safe.

Note:
Funding Information: None.

Conflict of Interests: The authors declare that this work has no conflicting personal or financial influences

Keywords: COVID-19; Vaccines; Adherence; Hesitancy; MF-DFA; Anti-persistent

Suggested Citation

Fernandes, Leonardo HS and Araujo, Fernando Henrique Antunes de, Multifractal Dynamics of COVID-19 Vaccines in Europe (August 20, 2022). Available at SSRN: https://ssrn.com/abstract=4195154 or http://dx.doi.org/10.2139/ssrn.4195154

Leonardo HS Fernandes

Universidade Federal Rural de Pernambuco (UFRPE)

R. Dom Manoel de Medeiros, s/n, Dois Irmãos
Recife, PE, 52171
Brazil

Fernando Henrique Antunes de Araujo (Contact Author)

Instituto Federal da Paraíba ( email )

Patos
Brazil

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