What matters in corporate governance

Lucian Bebchuk, Alma Cohen, Allen Ferrell

Research output: Contribution to journalArticlepeer-review

Abstract

We investigate the relative importance of the twenty-four provisions followed by the Investor Responsibility Research Center (IRRC) and included in the Gompers, Ishii, and Metrick governance index (Gompers, Ishii, and Metrick 2003). We put forward an entrenchment index based on six provisions: staggered boards, limits to shareholder bylaw amendments, poison pills, golden parachutes, and supermajority requirements for mergers and charter amendments. We find that increases in the index level are monotonically associated with economically significant reductions in firm valuation as well as large negative abnormal returns during the 1990-2003 period. The other eighteen IRRC provisions not in our entrenchment index were uncorrelated with either reduced firm valuation or negative abnormal returns.

Original languageEnglish
Pages (from-to)783-827
Number of pages45
JournalReview of Financial Studies
Volume22
Issue number2
DOIs
StatePublished - Feb 2009

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