Related: A bargaining-theoretic approach to moral uncertainty by Greaves and Cotton-Barratt. Section 6 is especially interesting where they highlight a problem with the Nash approach; namely that the NBS is variant to whether (sub-)agents are bargaining over alldecision problems (which they are currently facing and think they will face with nonzero probability) simultaneously, or whether all bargaining problems are treated separately and you find the solution for each individual problem—one at a time.
In the ‘grand-world’ model, (sub-)agents can bargain across situations with differing stakes and prima facie reach mutually beneficial compromises, but it’s not very practical (as the authors note) and would perhaps depend too much on the priors in question (just as with updatelessness). In the ‘small-world’ model, on the other hand, you don’t have problems of impracticality and so on, but you will miss out on a lot of compromises.
Related: A bargaining-theoretic approach to moral uncertainty by Greaves and Cotton-Barratt. Section 6 is especially interesting where they highlight a problem with the Nash approach; namely that the NBS is variant to whether (sub-)agents are bargaining over all decision problems (which they are currently facing and think they will face with nonzero probability) simultaneously, or whether all bargaining problems are treated separately and you find the solution for each individual problem—one at a time.
In the ‘grand-world’ model, (sub-)agents can bargain across situations with differing stakes and prima facie reach mutually beneficial compromises, but it’s not very practical (as the authors note) and would perhaps depend too much on the priors in question (just as with updatelessness). In the ‘small-world’ model, on the other hand, you don’t have problems of impracticality and so on, but you will miss out on a lot of compromises.