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What the "Equal Weight View" is

McCutcheon, Randall G. (2019) What the "Equal Weight View" is. [Preprint]

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Dawid, DeGroot and Mortera showed, a quarter century ago, that any agent who regards a fellow agent as a peer--in particular, defers to the fellow agent's prior credences in the same way that she defers to her own--and updates by split-the-difference is prone (on pain of triviality) to diachronic incoherence. On the other hand one may show that there are special scenarios in which Bayesian updating approximates difference splitting, so it remains an important question whether it remains a viable (approximate) response to ``generic" peer update. We critique arguments by two teams of philosophers (Fitelson & Jehle and Nissan-Rozen & Spectre) against this updating scheme, then suggest an alternative ``Equal Weight'' response to cases of peer disagreement.

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Item Type: Preprint
McCutcheon, Randall G.cutch17@yahoo.com0000-0002-5305-3662
Keywords: Equal Weight View, Split-the-difference, Peerhood
Subjects: Specific Sciences > Probability/Statistics
Depositing User: Dr. Randall G. McCutcheon
Date Deposited: 15 Aug 2019 02:00
Last Modified: 15 Aug 2019 02:00
Item ID: 16323
Subjects: Specific Sciences > Probability/Statistics
Date: 13 August 2019

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