Abstract

https://ssrn.com/abstract=891596
 
 

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Is Unlevered Firm Volatility Asymmetric?


Hazem Daouk


Cornell University - School of Applied Economics and Management

David T. Ng


Cornell University

January 11, 2007

AFA 2007 Chicago Meetings

Abstract:     
We develop a new, unlevering approach to document how well financial and operating leverage explain volatility asymmetry on a firm-by-firm basis. Volatility asymmetry means that when stock price drops (rises), the volatility of the returns typically increases (decreases). Our evidence, using a large sample of U.S. firms, shows that almost all of the firm-level asymmetry can be explained by financial leverage and, to a smaller extent, operating leverage. This result is robust even when we allow for risky debt. On the index-level, however, even after removing financial and operating leverage from each component firm, a large portion of volatility asymmetry persists. When the market goes down, unlevered index-level returns have higher volatility because the unlevered component stock returns have higher covariance rather than higher volatility. Covariance asymmetry explains why financial leverage causes the firm-level asymmetry but not the index-level asymmetry.

Number of Pages in PDF File: 49

Keywords: Volatility asymmetry, Financial leverage, Operating leverage, Covariance asymmetry, Merton model, Stock returns

JEL Classification: G12


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Date posted: March 17, 2006  

Suggested Citation

Daouk, Hazem and Ng, David T., Is Unlevered Firm Volatility Asymmetric? (January 11, 2007). AFA 2007 Chicago Meetings. Available at SSRN: https://ssrn.com/abstract=891596 or http://dx.doi.org/10.2139/ssrn.891596

Contact Information

Hazem Daouk
Cornell University - School of Applied Economics and Management ( email )
446 Warren Hall
Ithaca, NY 14853
United States
331-45-78-63-88 (Fax)
HOME PAGE: http://courses.cit.cornell.edu/hd35/
David T. Ng (Contact Author)
Cornell University ( email )
Ithaca, NY 14853
United States
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