Condorcet Markets

Fuente: arXiv
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Auteurs principaux: Airiau, Stéphane, Dupuis, Nicholas Kees, Grossi, Davide
Format: Preprint
Publié: 2023
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author Airiau, Stéphane
Dupuis, Nicholas Kees
Grossi, Davide
author_facet Airiau, Stéphane
Dupuis, Nicholas Kees
Grossi, Davide
contents The paper studies information markets concerning single events from an epistemic social choice perspective. Within the classical Condorcet error model for collective binary decisions, we establish equivalence results between elections and markets, showing that the alternative that would be selected by weighted majority voting (under specific weighting schemes) corresponds to the alternative with highest price in the equilibrium of the market (under specific assumptions on the market type). This makes it possible in principle to implement specific weighted majority elections, which are known to have superior truth-tracking performance, by means of information markets without needing to elicit voters' competences.
format Preprint
id arxiv_https___arxiv_org_abs_2306_05028
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Condorcet Markets
Airiau, Stéphane
Dupuis, Nicholas Kees
Grossi, Davide
Computer Science and Game Theory
Multiagent Systems
The paper studies information markets concerning single events from an epistemic social choice perspective. Within the classical Condorcet error model for collective binary decisions, we establish equivalence results between elections and markets, showing that the alternative that would be selected by weighted majority voting (under specific weighting schemes) corresponds to the alternative with highest price in the equilibrium of the market (under specific assumptions on the market type). This makes it possible in principle to implement specific weighted majority elections, which are known to have superior truth-tracking performance, by means of information markets without needing to elicit voters' competences.
title Condorcet Markets
topic Computer Science and Game Theory
Multiagent Systems
url https://arxiv.org/abs/2306.05028