 Gauthier famously pursued the bargaining approach, building his Morals by Agreement on his bargaining solution, minimax relative concession, which is equivalent to the Kalai-Smorodinsky bargaining solution in the two-person case (see also Gaus 1990, Ch. IX). Binmore (2005) has recently advanced a version of social contract theory that relies on the Nash bargaining solution, as does Ryan Muldoon (2017) while Moehler (2018) relies on a “stabilized” Nash bargaining solution. In later work, Gauthier (1993) shifted from minimax relative concession to the Nash solution. Gauthier has since adopted a less formal approach to bargaining that is, nevertheless, closer to his original solution than to the Nash Solution (2013).