Because I’m not indifferent between “I get 1 utility and Bob gets 0” and “I get 0 utility and Bob gets 1″. I’m bargaining with Bob to choose a specific point on that segment, maybe {0.5,0.5}.
Because I’m not indifferent between “I get 1 utility and Bob gets 0” and “I get 0 utility and Bob gets 1″. I’m bargaining with Bob to choose a specific point on that segment, maybe {0.5,0.5}.