Evaluating stock exchange volatility in Brazil after its upgrade to investment grade

Autores

  • Bruno Maia Cavalcante FUNCEF
  • Ronald Otto Hillbrecht UFRGS

Resumo

International evidence show that emerging countries upgraded to investment grade (IG) presented stock exchange volatility mitigation. This article evaluates volatility path of Ibovespa after Brazil´s upgrade to IG to confront with international evidence. It´s utilized TGARCH and EGARCH models to estimate conditional volatility of Ibovespa and MSCI Emerging Markets, this selected as benchmark. Results obtained are compatible with international evidence: it was observed considerable decrease of absolute and relative volatility of Ibovespa in the period of six years after investment grade was granted to Brazil. On the other hand, from 2012 on it was observed a reversal path of Ibovespa´s volatility mitigation process while macroeconomic fundaments started to deteriorate in Brazil driving to IG loss by two agencies in 2015.

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Biografia do Autor

Bruno Maia Cavalcante, FUNCEF

Mestre em Economia Aplicada pela UFRGS;

Economista Sênior da FUNCEF na Diretoria de Investimentos.

Ronald Otto Hillbrecht, UFRGS

PhD em Economia pela University of Illinois;

Professor e pesquisador da UFRGS.

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Publicado

2016-06-29

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