Relative Utilitarianism
在彩票偏好框架下，证明弱化版阿罗公理体系有唯一解：先将个人冯·诺依曼-摩根斯坦效用标准化到0和1之间，再求和，即“相对功利主义”。
In a framework of preferences over lotteries, we show that an axiom system consisting of weakened versions of Arrow's axioms has a unique solution. "Relative Utilitarianism" consists of first normalizing individual von Neumann-Morgenstern utilities between 0 and 1 and then summing them.