 This particular property is criticized in Kalai and Smorodinsky (1975), because it makes the solution ignore the relative size of the sacrifices made by the parties in order to reach a compromise. They propose another solution, which consists of equalizing the parties’ sacrifice relative to the maximum gain they could expect in the available set of options. This solution, contrary to Nash’s, guarantees that an enlargement of the set of options that is favorable to one party never hurts this party in the ultimate selection. It is very similar to Gauthier’s (1986) “minimax relative concession” solution. Many other solutions to the bargaining problem have been proposed, but these two are by far the most prominent.