We propose two simple mechanisms that implement two bargaining sets in super-additive environments. The first bargaining set is a close variation of the one Ž . proposed by L. Zhou 1994, Games Econom. Beha ̈. 6, 512]526 , and the second is Ž the Pareto optimum payoffs of the A. Mas-Colell 1989, J. Math. Econom. 18, . 129]139 bargaining set. We adopt a simple framework in which the cooperative ou...