Mongin, Philippe; Pivato, Marcus - 2015
theory and welfare economics, which are restricted to the certainty case, with Harsanyi's pathbreaking attempt at extending … Observer Theorem. Section 3 does the same job for Harsanyi's Social Aggregation Theorem and discusses Sen's objections against … the utilitarian relevance of either theorem. Section 4 explains why the Social Aggregation Theorem does not carry through …