In the traditional Nash bargaining setup you evaluate people’s utilities in options relative to the default scenario, and only consider options that make everyone at least as well off. This makes it individually rational for everyone to participate because they will be made better off by the bargain. That’s different from, say, range voting.
what do you mean “default”? you just have a utility for each option and the best option is the one that maximizes net utility.
https://www.rangevoting.org/BayRegDum
In the traditional Nash bargaining setup you evaluate people’s utilities in options relative to the default scenario, and only consider options that make everyone at least as well off. This makes it individually rational for everyone to participate because they will be made better off by the bargain. That’s different from, say, range voting.