Learning to Maximize Gains From Trade in Small Markets

Fuente: arXiv
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Main Authors: Babaioff, Moshe, Frey, Amitai, Nisan, Noam
Format: Preprint
Published: 2024
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author Babaioff, Moshe
Frey, Amitai
Nisan, Noam
author_facet Babaioff, Moshe
Frey, Amitai
Nisan, Noam
contents We study the problem of designing a two-sided market (double auction) to maximize the gains from trade (social welfare) under the constraints of (dominant-strategy) incentive compatibility and budget-balance. Our goal is to do so for an unknown distribution from which we are given a polynomial number of samples. Our first result is a general impossibility for the case of correlated distributions of values even between just one seller and two buyers, in contrast to the case of one seller and one buyer (bilateral trade) where this is possible. Our second result is an efficient learning algorithm for one seller and two buyers in the case of independent distributions which is based on a novel algorithm for computing optimal mechanisms for finitely supported and explicitly given independent distributions. Both results rely heavily on characterizations of (dominant-strategy) incentive compatible mechanisms that are strongly budget-balanced.
format Preprint
id arxiv_https___arxiv_org_abs_2401_11596
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Learning to Maximize Gains From Trade in Small Markets
Babaioff, Moshe
Frey, Amitai
Nisan, Noam
Computer Science and Game Theory
Artificial Intelligence
Machine Learning
F.0; I.2; I.2.6; J.4
We study the problem of designing a two-sided market (double auction) to maximize the gains from trade (social welfare) under the constraints of (dominant-strategy) incentive compatibility and budget-balance. Our goal is to do so for an unknown distribution from which we are given a polynomial number of samples. Our first result is a general impossibility for the case of correlated distributions of values even between just one seller and two buyers, in contrast to the case of one seller and one buyer (bilateral trade) where this is possible. Our second result is an efficient learning algorithm for one seller and two buyers in the case of independent distributions which is based on a novel algorithm for computing optimal mechanisms for finitely supported and explicitly given independent distributions. Both results rely heavily on characterizations of (dominant-strategy) incentive compatible mechanisms that are strongly budget-balanced.
title Learning to Maximize Gains From Trade in Small Markets
topic Computer Science and Game Theory
Artificial Intelligence
Machine Learning
F.0; I.2; I.2.6; J.4
url https://arxiv.org/abs/2401.11596