Weighing and aggregating reasons under uncertainty: a trilemma

Ittay Nissan-Rozen*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


I discuss the trilemma that consists of the following three principles being inconsistent:1.The Common Principle: if one distribution, A, necessarily brings a higher total sum of personal value that is distributed in a more egalitarian way than another distribution, B, A is more valuable than B.2.(Weak) ex-ante Pareto: if one uncertain distribution, A, is more valuable than another uncertain distribution, B, for each patient, A is more valuable than B.3.Pluralism about attitudes to risk (Pluralism): the personal value of a prospect is a weighted sum of the values of the prospect’s outcomes, but the weight each outcome gets might be different from the probability the prospect assigns to the outcome.

Original languageAmerican English
Pages (from-to)2853-2871
Number of pages19
JournalPhilosophical Studies
Issue number9
StatePublished - Sep 2021

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