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Corporate Governance and Firm Valuation

Lawrence D. Brown

Temple University - Department of Accounting

Marcus L. Caylor

Kennesaw State University

Journal of Accounting and Public Policy, Vol. 25, No. 4, 2006

Gompers et al. [Gompers, P., Ishii, J., Metrick, A., 2003. Corporate governance and equity prices. Quarterly Journal of Economics 118, 107-155] created G-Index, a summary measure of corporate governance based on 24 firm-specific provisions, and showed that more democratic firms are more valuable. Bebchuk et al. [Bebchuk, L., Cohen, A., Ferrell, A., 2005. What matters in corporate governance? Working Paper, Harvard Law School] created an entrenchment index based on six provisions underlying G-Index, and found it to fully drive the Gompers et al. (2003) valuation results. Both G-Index and the entrenchment index are based on IRRC data that is comprised of anti-takeover measures, focusing on external governance [Cremers, K.J.M., Nair, V.B., 2005. Governance mechanisms and equity prices. Journal of Finance 60, 2859-2894]. We create Gov-Score, a summary governance measure based on 51 firm-specific provisions representing both internal and external governance, and we show that a parsimonious index based on seven provisions underlying Gov-Score fully drives the relation between Gov-Score and firm value. Our results support the Bebchuk et al. (2005) findings that only a small subset of provisions marketed by corporate governance data providers are related to firm valuation, and the Cremers and Nair (2005) evidence that both internal and external governance are linked to firm value. The 51 governance provisions we consider include five that are relevant to accounting and public policy: stock option expensing, and four that are audit-related. We find none of these five measures to be related to firm valuation. We document that only one of the seven governance provisions important for firm valuation was mandated by either the Sarbanes-Oxley Act of 2002 or the three major US stock exchanges. We provide researchers with an alternative measure of governance to G-Index with three distinct advantages: (1) broader in scope of governance, (2) covers more firms, and (3) more dynamic, reflecting recent changes in the corporate governance environment.

Number of Pages in PDF File: 26

Keywords: Corporate governance, firm valuation, anti-takeover, internal and external governance

JEL Classification: D21, G30, G33, G34, G35, M41

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Date posted: July 7, 2005 ; Last revised: April 1, 2014

Suggested Citation

Brown, Lawrence D. and Caylor, Marcus L., Corporate Governance and Firm Valuation. Journal of Accounting and Public Policy, Vol. 25, No. 4, 2006. Available at SSRN: https://ssrn.com/abstract=754484 or http://dx.doi.org/10.2139/ssrn.754484

Contact Information

Lawrence D. Brown (Contact Author)
Temple University - Department of Accounting ( email )
Philadelphia, PA 19122
United States

Marcus L. Caylor
Kennesaw State University ( email )
1000 Chastain Road
Kennesaw, GA 30144
United States
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