A geometric Blackwell’s order

Wenhao Wu

Economics Letters, 2023, vol. 226, issue C

Abstract: I present a geometric version of Blackwell’s order related to the dispersion of posterior beliefs induced by an experiment. I show that , when the posterior beliefs are affinely independent on the probability space, a more informative experiment corresponds to a more dispersed distribution of posterior beliefs.

Keywords: Blackwell’s theorem; Incomplete information; Bayesian persuasion (search for similar items in EconPapers)
JEL-codes: D82 D83 (search for similar items in EconPapers)
Date: 2023
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Persistent link: https://EconPapers.repec.org/RePEc:eee:ecolet:v:226:y:2023:i:c:s0165176523001076

DOI: 10.1016/j.econlet.2023.111082

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