Effects of Idiosyncratic Volatility in Asset Pricing
DOI:
https://doi.org/10.1590/1808-057x201501940Abstract
This paper aims to evaluate the effects of the aggregate market volatility components - average volatility and average correlation - on the pricing of portfolios sorted by idiosyncratic volatility, using Brazilian data. The study investigates whether portfolios with high and low idiosyncratic volatility - in relation to the Fama and French model (1996) - have different exposures to innovations in average market volatility, and consequently, different expectations for return. The results are in line with those found for US data, although they portray the Brazilian reality. Decomposition of volatility allows the average volatility component, without the disturbance generated by the average correlation component, to better price the effects of a worsening or an improvement in the investment environment. This result is also identical to that found for US data. Average variance should thus command a risk premium. For US data, this premium is negative. According to Chen and Petkova (2012), the main reason for this negative sign is the high level of investment in research and development recorded by companies with high idiosyncratic volatility. As in Brazil this type of investment is significantly lower than in the US, it was expected that a result with the opposite sign would be found, which is in fact what occurred.Downloads
Downloads
Published
Issue
Section
License
The content of the article(s) published in the RC&F are of the entire liability of the authors, including with regard to the truth, updating and accuracy of data and information. The authors shall assign the rights in advance to the Department of Accounts and Actuarial Sciences of the FEA/USP, which shall permit the publication of extracts or of the whole, with prior permission, provided that the source is cited (Creative Commons – CCBY).
RC&F shall not charge a fee for the submission of articles. The submission of articles to RC&F shall imply that the author(s) authorizes/authorize its publication without the payment of author’s rights.
The submission of articles shall authorize the RC&F to adjust the text of the article(s) to their publication formats and if necessary, to make spelling, grammar and regulatory changes.