A Belief-Based Characterization of Reduced-Form Auctions
Abstract
We study games of chance (e.g., pokers, dices, horse races) in the form of agents' first-order posterior beliefs about game outcomes. We ask for any profile of agents' posterior beliefs, is there a game that can generate these beliefs? We completely characterize all feasible joint posterior beliefs from these games. The characterization enables us to find a new variant of Border's inequalities (Border, 1991), which we call a belief-based characterization of Border's inequalities. It also leads to a generalization of Aumann's Agreement Theorem. We show that the characterization results are powerful in bounding the correlation of agents' joint posterior beliefs.
Cite
@article{arxiv.2307.04070,
title = {A Belief-Based Characterization of Reduced-Form Auctions},
author = {Xu Lang},
journal= {arXiv preprint arXiv:2307.04070},
year = {2023}
}
Comments
Games of Chance, Posterior Beliefs, Reduced Form Auctions, Aumann's Agreement Theorem, Bayesian Persuasion