Thanks! For convex sets of distributions: If you weaken the definition of fixed point to gC(S)≤S, then the set {S∈CX:gC(S)=S} has a least element which really is a least fixed point.
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Thanks! For convex sets of distributions: If you weaken the definition of fixed point to gC(S)≤S, then the set {S∈CX:gC(S)=S} has a least element which really is a least fixed point.