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Covid-19 Influence Over Brazilian Agricultural Commodities And Dollar–Real Exchange

Author

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  • KEROLLY KEDMA FELIX DO NASCIMENTO

    (Department of Statistics and Informatics, Federal Rural University of Pernambuco, Rua Dom Manoel de Medeiros s/n, Dois Irmãos 52171-900, Recife/PE, Brazil)

  • FÃ BIO SANDRO DOS SANTOS

    (Department of Statistics and Informatics, Federal Rural University of Pernambuco, Rua Dom Manoel de Medeiros s/n, Dois Irmãos 52171-900, Recife/PE, Brazil)

  • KELLYMA KELLYASHIN FELIX DO NASCIMENTO

    (��Federal Institute of Paraíba, Campus Sousa (São Gonçalo), Rua Pedro Antunes s/n, São Gonçalo 58814-000, São Gonçalo Sousa/PB, Brazil)

  • KENIKYWAYNNE KEROWAYNNE FELIX DO NASCIMENTO

    (��Federal Institute of Paraíba, Campus Sousa (São Gonçalo), Rua Pedro Antunes s/n, São Gonçalo 58814-000, São Gonçalo Sousa/PB, Brazil)

  • SILVIO FERNANDO ALVES XAVIER JÚNIOR

    (��Department of Statistics, State University of Paraíba, Rua Baraúnas No. 351, Bodocongó, Campina Grande/PB 58109-753, Campina Grande, Paraíba, Brazil)

  • JADER SILVA JALE

    (Department of Statistics and Informatics, Federal Rural University of Pernambuco, Rua Dom Manoel de Medeiros s/n, Dois Irmãos 52171-900, Recife/PE, Brazil)

  • TIAGO A. E. FERREIRA

    (Department of Statistics and Informatics, Federal Rural University of Pernambuco, Rua Dom Manoel de Medeiros s/n, Dois Irmãos 52171-900, Recife/PE, Brazil)

Abstract

This study evaluates the Brazilian agricultural commodities market and the dollar–real exchange price variation using the multifractal detrended fluctuations analysis methodology. We investigated the period from January 1, 2019 to September 25, 2019, outside the COVID-19 pandemic, and from January 1, 2020 to September 25, 2020, during the COVID-19 pandemic. We verified the fluctuations of commodities and dollar–real exchange prices during the pandemic caused by COVID-19 showed a record price. The results of Hurst exponent and multifractal parameters α0, w, and r indicate that during the COVID-19 pandemic, sugar was the most efficient commodity, while pork the less one. Compared to the identical months in 2019, the dollar–real exchange was the most efficient market, while ethanol was the least efficient.

Suggested Citation

  • Kerolly Kedma Felix Do Nascimento & Fã Bio Sandro Dos Santos & Kellyma Kellyashin Felix Do Nascimento & Kenikywaynne Kerowaynne Felix Do Nascimento & Silvio Fernando Alves Xavier Jãšnior & Jader Silva, 2022. "Covid-19 Influence Over Brazilian Agricultural Commodities And Dollar–Real Exchange," FRACTALS (fractals), World Scientific Publishing Co. Pte. Ltd., vol. 30(06), pages 1-10, September.
    • Handle: RePEc:wsi:fracta:v:30:y:2022:i:06:n:s0218348x22501006
    DOI: 10.1142/S0218348X22501006
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