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Harsanyi’s impartial observer theorem with a restricted domain. (English) Zbl 1073.91633
Summary: We extend Harsanyi’s impartial observer theorem by showing that the large domain of social lotteries can be significantly restricted – it is sufficient that the domain consists only of constant extended lotteries.

MSC:
91D10 Models of societies, social and urban evolution
91B10 Group preferences
91B14 Social choice
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