Economics at your fingertips  

Isolating the systematic and unsystematic components of a single stock's (or portfolio's) standard deviation: a comment

Fabio Pizzutilo ()

Applied Economics, 2015, vol. 47, issue 58, 6277-6283

Abstract: In an article that recently appeared in this journal, Marshall (2015) argued that the systematic component of the SD of a stock or of a portfolio of stocks is its beta scaled by the SD of the market returns. She also contended that the beta mispredicts the actual systematic risk of a stock or of a portfolio of stocks. In this article, I dispute this conclusion, showing that it has been induced by an imperfection in the construction of the empirical application and by some misinterpretations of the results. A corrected replication of the empirical study of Marshall (2015) is provided, along with some comments. I conclude that both the beta and the systematic component in Marshall (2015) are effective measures of systematic risk.

Date: 2015
References: Add references at CitEc
Citations: View citations in EconPapers (1) Track citations by RSS feed

Downloads: (external link) (text/html)
Access to full text is restricted to subscribers.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link:

Ordering information: This journal article can be ordered from

Access Statistics for this article

Applied Economics is currently edited by Anita Phillips

More articles in Applied Economics from Taylor & Francis Journals
Bibliographic data for series maintained by Chris Longhurst ().

Page updated 2019-09-24
Handle: RePEc:taf:applec:v:47:y:2015:i:58:p:6277-6283