@inproceedings{df137d7430284f6e91cf3357471ecbfe,
title = "Breaking the Envy Cycle: Best-of-Both-Worlds Guarantees for Subadditive Valuations",
abstract = "We study best-of-both-worlds guarantees for the fair division of indivisible items among agents with subadditive valuations. Our main result establishes the existence of a random allocation that is simultaneously ex-ante 1.2 -envy-free, ex-post 1/2 -EFX and ex-post EF1, for every instance with subadditive valuations. We achieve this result by a novel polynomial-time algorithm that randomizes the well-established envy cycles procedure in a way that provides ex-ante fairness. Notably, this is the first best-of-both-worlds fairness guarantee for subadditive valuations, even when considering only EF1 without EFX.",
keywords = "Best-of-Both-Worlds, Envy-Cycles, Fair Division, Subadditive",
author = "Michal Feldman and Simon Mauras and Narayan, {Vishnu V.} and Tomasz Ponitka",
note = "Publisher Copyright: {\textcopyright} 2024 Copyright held by the owner/author(s).; 25th Conference on Economics and Computation, EC 2024 ; Conference date: 08-07-2024 Through 11-07-2024",
year = "2024",
month = dec,
day = "17",
doi = "10.1145/3670865.3673592",
language = "אנגלית",
series = "EC 2024 - Proceedings of the 25th Conference on Economics and Computation",
publisher = "Association for Computing Machinery, Inc",
pages = "1236--1266",
booktitle = "EC 2024 - Proceedings of the 25th Conference on Economics and Computation",
}