Cartel screening in the Brazilian fuel retail market

Autor: Douglas Silveira, Silvinha Vasconcelos, Paula Bogossian, Joaquim Neto
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: EconomiA, Vol 22, Iss 1, Pp 53-70 (2021)
Druh dokumentu: article
ISSN: 1517-7580
DOI: 10.1016/j.econ.2021.01.001
Popis: We aim to evaluate two different econometric screens for identifying anti-competitive behavior in the fuel retail market: (i) The Markov-Switching GARCH (MS-GARCH) Models; (ii) The Local Gaussian Correlation (LGC) approach. Using the gasoline cartel judged and condemned in Brasília as a benchmark, our results indicate that the LGC model, based on the correlation of the resale price margin and price variability, may provide a biased likelihood as well as an incorrect identification of cartel behavior over time. The MSGARCH model, based only on the log deviation of the average gasoline sales price, showed better accuracy in cartel detection.
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