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In social choice and operations research, the utilitarian rule (also called the max-sum rule) is a rule saying that, among all possible alternatives, society should pick the alternative which maximizes the sum of the utilities of all individuals in society.[1]: sub.2.5 It is a formal mathematical representation of the utilitarian philosophy, and is often justified by reference to Harsanyi's utilitarian theorem or the Von Neumann–Morgenstern theorem.
In the context of voting systems, the rule is called score voting.
- ^ Moulin, Hervé (2003). Fair division and collective welfare. Cambridge, Mass.: MIT Press. ISBN 978-0-262-13423-1.