 The risk function measures the weight of the top \(p\)-portion of consequences in the evaluation of an act—how much the decision-maker cares about benefits that obtain only in the top \(p\)-portion of states. (One could also think of the risk function as describing the solution to a distributive justice problem among one’s future possible selves—it says how much weight a decision-maker gives to the interests of the top \(p\)-portion of his future possible selves.) A risk-avoidant person is someone with a convex risk function: as benefits obtain in a smaller and smaller portion of states, he gives proportionally less and less weight to them. A risk-inclined person is someone with a concave risk function. And a globally neutral person is someone with a linear risk function, i.e., an EU maximizer.