Yakov Amihud, Markus M. Schmid & Steven Davidoff Solomon, Do Staggered Boards Affect Firm Value?, — Iowa Law Review — (forthcoming 2017)

We attempt to resolve conflicting empirical results in studies on the wealth effects of staggered boards by addressing issues of endogeneity, omitted variable bias and functional form. In a sample of up to 2,961 firms from 1990 to 2013 we find that additional variables provide significant explanatory power for the (negative) wealth effects of staggered firms found in prior studies, and their inclusion makes the effect of a staggered board on firm value insignificant. When we control for endogeneity by the instrumental variable method, we find again that the staggered board has no significant effect on firm value. Our results suggest caution about legal solutions which advocate wholesale adoption or repeal of the staggered board and instead evidence an individualized firm approach, and provide some measure of skepticism for law-related corporate governance proposals generally.