How does having a “disagreement point” prevent this same scaling trick? It seems that the issue is more-so with the ability to arbitrarily rescale using a different scaling function for each axis…
The disagreement point gives origins to both utilities, and prevents translations. It turns out that IIA can apply if only scalings are allowed, even different scalings (see Nash bargaining in my other post)
How does having a “disagreement point” prevent this same scaling trick? It seems that the issue is more-so with the ability to arbitrarily rescale using a different scaling function for each axis…
The disagreement point gives origins to both utilities, and prevents translations. It turns out that IIA can apply if only scalings are allowed, even different scalings (see Nash bargaining in my other post)