Is there a power law in the Brazilian stock market index? Evidence from 2017-2022

Autores

  • Helberte João França Almeida Professor, Dr. Universidade Federal de Santa Catarina
  • Rafael Jasper Feltrin

DOI:

https://doi.org/10.31501/rbee.v23i1.14480

Resumo

Financial markets are complex systems, which can be studied under the lens of econophysics, including the study of phenomena such as power laws. We test the hypothesis of a power law in Ibovespa, the main Brazilian stock market index, and cannot dismiss the hypothesis that its stocks are distributed following a power law. This is most interesting, as these stocks are ordered by individual trading volumes, thus a similar pattern always emerges organically even though companies are always exchanging positions and being excluded or added to the index.

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Publicado

2023-09-24

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