Utilitarian Aggregation with Heterogeneous Beliefs

The utilitarian aggregation rule requires social utility and beliefs to be a convex combination of individual utilities beliefs, respectively. Since, in the case belief heterogeneity, standard Pareto condition is incompatible with such separate aggregation, new condition, called belief-proof proposed alleviate occurrences spurious agreement by restricting unanimity that can considered reasonable society. Then, we show, Anscombe-Aumann Savage framework, equivalent tastes. (JEL D11, D71, D83)