
We show that, in a two-period economy with uncertainty in the second period, if an allocation is Pareto optimal for a given set of beliefs and remains optimal when these beliefs are changed, then the set of optimal allocations of the two economies must actually coincide. We identify equivalence classes of beliefs giving rise to the same set of Pareto optimal allocations.
Pareto optimality, 330, Beliefs, [SHS.ECO]Humanities and Social Sciences/Economics and Finance, Pareto Optimality, beliefs, Special types of economic markets (including Cournot, Bertrand), Beliefs,Pareto Optimality, [SHS.ECO] Humanities and Social Sciences/Economics and Finance, Beliefs, Pareto Optimality
Pareto optimality, 330, Beliefs, [SHS.ECO]Humanities and Social Sciences/Economics and Finance, Pareto Optimality, beliefs, Special types of economic markets (including Cournot, Bertrand), Beliefs,Pareto Optimality, [SHS.ECO] Humanities and Social Sciences/Economics and Finance, Beliefs, Pareto Optimality
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