Utilitarian Aggregation of Beliefs and Tastes
Several authors have indicated a contradiction between consistent aggregation of subjective beliefs and tastes, and a Pareto condition. We argue that the Pareto condition that implies the contradiction is not compelling. Society should not necessarily endorse a unanimous choice when it is based on contradictory beliefs. Restricting the Pareto condition to choices that only involve identical beliefs allows a utilitarian aggregation: both society's utility function and its probability measure are linear combinations of those of the individuals.
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References listed on IDEAS
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