Does Idiosyncratic Risk Matter in the Brazilian Capital Market?

This paper analyses the relationship between idiosyncratic risk and diversified portfolio returns on Brazil’s capital market. Following Goyal and Santa-Clara (2003) and Bali et alii (2005) we use volatility measures that capture systematic and idiosyncratic risk. For the identification of the relati...

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Bibliographic Details
Main Authors: José Roberto Securato, Fernando Caio Galdi
Format: Article
Language:English
Published: Brazilian Society of Finance 2007-06-01
Series:Revista Brasileira de Finanças
Subjects:
Online Access:http://virtualbib.fgv.br/ojs/index.php/rbfin/article/view/1165
Description
Summary:This paper analyses the relationship between idiosyncratic risk and diversified portfolio returns on Brazil’s capital market. Following Goyal and Santa-Clara (2003) and Bali et alii (2005) we use volatility measures that capture systematic and idiosyncratic risk. For the identification of the relationship between idiosyncratic risk and portfolio returns we use a time series framework regressing volatility measures and portfolio returns one step ahead from 1999:01 to 2006:03. Additionally, we carry out robustness tests to validate our results. We found no evidence of a relationship between idiosyncratic risk and portfolio returns for the Brazilian capital market. Our evidence is similar to those from Bali et alii (2005) for the US capital market, which challenges the Goyal e Santa-Clara (2003) findings.
ISSN:1679-0731
1984-5146