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Title: Quantifying cross-correlation between Ibovespa and Brazilian blue-chips: the DCCA approach
Other Titles: Physica A
Authors: Silva, Marcus Fernandes da
Pereira, Éder Johnson de Area Leão
Silva Filho, Aloisio Machado da
Castro, Arleys Pereira Nunes de
Miranda, José Garcia Vivas
Zebende, Gilney Figueira
Keywords: DCCA cross-correlation coefficient;Blue-chips;Time series
Issue Date: 2015
Citation: SILVA, Marcus Fernandes da et al. Quantifying cross-correlation between Ibovespa and Brazilian blue-chips: the DCCA approach. Physica A, Amsterdam, v. 424, p. 124-129, 2015.
Abstract: The objective of this paper is to demonstrate the influence of the blue-chips companies in the stock market. In this, we apply the detrended cross-correlation coefficient ρDCCA at the São Paulo stock market (Ibovespa, Brazil). Initially we found that there is a positive cross-correlation between these companies and the index. Afterwards, we show that the cross-correlation coefficient value depends on the time scale and the specific company (blue-chips). Thus, this type of analysis lets to infer what is the most adherent company with Ibovespa. Also, in this paper we analyze, in the point of view of ρDCCA, the 2008 financial crisis (before/after). Altogether, the results show that there is more cross-correlation between Ibovespa index the blue-chips after the 2008 crisis.
Description: p. 124-129
Appears in Collections:Artigos Publicados em Periódicos (PPG MCTI)

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