Diesel prices in Brazil: A dynamic fractional integration analysis


  • Derick David Quintino Department of Economics, Administration and Sociology, University of São Paulo,13418-900 Piracicaba, SP, Brazil
  • Paulo Ferreira VALORIZA - Research Center for Endogenous Resource Valorization, Portalegre, Portugal Instituto Politécnico de Portalegre, Portalegre, Portugal CEFAGE-UE, IIFA, Universidade de Évora, Portugal




We investigate the behaviour of retail diesel prices in Brazil using fractional integration, with weekly data from January 2010 to April 2020. In this period, we have 3 episodes of relevant economic implications in the country under analysis: i) impeachment of the Brazilian President; ii) the lorry-drivers’ strike; iii) the rise of the global Covid-19 epidemic. We use a sliding windows approach to analyze price dynamics over time. The results suggest that, at the beginning of the sample, prices were non-stationary and non-mean reverting but over the time results changed in the different regions. Results are relevant for market agents and policy-makers, as it can be inferred whether exogenous shocks are temporary, despite taking some time to dissipate completely.


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How to Cite

Quintino, D. D., & Ferreira, P. (2021). Diesel prices in Brazil: A dynamic fractional integration analysis. Economics and Business Letters, 10(2), 116-125. https://doi.org/10.17811/ebl.10.2.2021.116-125