We show that bounds like those of Al-Najjar and Smorodinsky (J. Econ. Theory, 2000) as well as of Gradwohl et al. (Math. Oper. Res., 2009) on the number of alpha-pivotal agents can be obtained by decomposition of variance. All these bounds have a similar asymptotic behaviour, up to constant...

Past work has shown that asymmetric information and asymmetric ownership affect the possibility of efficient dissolution of partnerships. We show that \textit{control} is also a central determinant of the possibility of efficient implementation. We demonstrate this point by analyzing a benchmark...