From Posteriors to Priors via Cycles: An Addendum

Hellwig, Martin

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From Posteriors to Priors via Cycles: An Addendum

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Hellwig, Martin
Max Planck Institute for Research on Collective Goods, Max Planck Society;

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http://www.coll.mpg.de/pdf_dat/2011_07online.pdf
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引用

Hellwig, M. (2011). From Posteriors to Priors via Cycles: An Addendum.

引用: https://hdl.handle.net/11858/00-001M-0000-0028-6E88-0

要旨

Rodrigues-Neto (2009) has shown that a given specification of posteriors of different players in an incomplete-information setting is compatible with a common prior if and only if the posteriors satisfy the so-called cycle equations. This note shows that, if, for any player, any element of the partition of the this player has a nonempty intersection with any element of the partition of any other player, then it suffices to verify the cycle equations for all cycles of length 4 or less.