Learning and the Disappearing Association Between Governance and Returns

56 Pages Posted: 14 Apr 2010 Last revised: 12 Jun 2014

See all articles by Lucian A. Bebchuk

Lucian A. Bebchuk

Harvard Law School; European Corporate Governance Institute (ECGI); National Bureau of Economic Research (NBER)

Alma Cohen

Harvard Law School; Tel Aviv University - Eitan Berglas School of Economics; Centre for Economic Policy Research (CEPR); European Corporate Governance Institute (ECGI); National Bureau of Economic Research (NBER)

Charles C. Y. Wang

Harvard University - Accounting & Control Unit; European Corporate Governance Institute (ECGI)

Multiple version iconThere are 2 versions of this paper

Date Written: August 1, 2012

Abstract

During the period 1991-1999, stock returns were correlated with the G-Index based on twenty-four governance provisions (Gompers, Ishii, and Metrick (2003)) and the E-Index based on the six provisions that matter most (Bebchuk, Cohen, and Ferrell (2009)). This correlation, however, did not persist during the subsequent period 2000-2008. We provide evidence that both the identified correlation and its subsequent disappearance were due to market participants’ gradually learning to appreciate the difference between firms scoring well and poorly on the governance indices. Consistent with the learning hypothesis, we find that:

(i) The disappearance of the governance-return correlation was associated with an increase in the attention to governance by a wide range of market participants; (ii) Until the beginning of the 2000s, but not subsequently, stock market reactions to earning announcements reflected the market’s being more positively surprised by the earning announcements of good-governance firms than by those of poor-governance firms; (iii) Stock analysts were also more positively surprised by the earning announcements of good-governance firms than by those of poor-governance firms until the beginning of the 2000s but not afterwards; (iv) While the G-Index and E-Index could no longer generate abnormal returns in the 2000s, their negative association with Tobin’s Q and operating performance persisted; and (v) The existence and subsequent disappearance of the governance-return correlation cannot be fully explained by additional common risk factors suggested in the literature for augmenting the Fame-French-Carhart four-factor model. ___________________________________

Gompers, Ishii, and Metrick (2003) is available on SSRN at: http://ssrn.com/abstract=278920

Bebchuk, Cohen, and Ferrell (2009) is available on SSRN at: http://ssrn.com/abstract=593423

Keywords: Corporate governance, governance indices, GIM, G-Index, E-Index, shareholder rights, entrenchment, market efficiency, learning, earning announcements, analyst forecasts, IRRC provisions, behavioral finance, asset pricing

JEL Classification: D03, G10, G12, G30, G34, K22

Suggested Citation

Bebchuk, Lucian A. and Cohen, Alma and Wang, Charles C. Y., Learning and the Disappearing Association Between Governance and Returns (August 1, 2012). Journal of Financial Economics, Vol. 108, No. 2, pp. 323-348, May 2013, Harvard Law School John M. Olin Center Discussion Paper No. 667, Available at SSRN: https://ssrn.com/abstract=1589731

Lucian A. Bebchuk (Contact Author)

Harvard Law School ( email )

Cambridge, MA 02138
United States
617-495-3138 (Phone)
617-812-0554 (Fax)

HOME PAGE: http://www.law.harvard.edu/faculty/bebchuk/

European Corporate Governance Institute (ECGI) ( email )

c/o the Royal Academies of Belgium
Rue Ducale 1 Hertogsstraat
1000 Brussels
Belgium

National Bureau of Economic Research (NBER) ( email )

1050 Massachusetts Avenue
Cambridge, MA 02138
United States

Alma Cohen

Harvard Law School ( email )

Cambridge, MA 02138
United States
(617) 496-4099 (Phone)
(617) 812-0554 (Fax)

Tel Aviv University - Eitan Berglas School of Economics ( email )

Ramat Aviv, Tel Aviv, 69978
Israel

Centre for Economic Policy Research (CEPR) ( email )

London
United Kingdom

European Corporate Governance Institute (ECGI) ( email )

c/o the Royal Academies of Belgium
Rue Ducale 1 Hertogsstraat
1000 Brussels
Belgium

National Bureau of Economic Research (NBER) ( email )

1050 Massachusetts Avenue
Cambridge, MA 02138
United States

Charles C. Y. Wang

Harvard University - Accounting & Control Unit ( email )

Soldiers Field
Boston, MA 02163
United States

European Corporate Governance Institute (ECGI) ( email )

c/o the Royal Academies of Belgium
Rue Ducale 1 Hertogsstraat
1000 Brussels
Belgium

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