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Efficiency, Sequenceability and Deal-Optimality in Fair Division of Indivisible Goods

Published: 08 May 2019 Publication History

Abstract

In fair division of indivisible goods, using sequences of sincere choices (or picking sequences) is a natural way to allocate the objects. The idea is as follows: at each stage, a designated agent picks one object among those that remain. Another intuitive way to obtain an allocation is to give objects to agents in the first place, and to let agents exchange them as long as such "deals" are beneficial. This paper investigates these notions, when agents have additive preferences over objects, and unveils surprising connections between them, and with other efficiency and fairness notions. In particular, we show that an allocation is sequenceable if and only if it is optimal for a certain type of deals, namely cycle deals involving a single object. Furthermore, any Pareto-optimal allocation is sequenceable, but not the converse. Regarding fairness, we show that an allocation can be envy-free and non-sequenceable, but that every competitive equilibrium with equal incomes is sequenceable. To complete the picture, we show how some domain restrictions may affect the relations between these notions. Finally, we experimentally explore the links between the scales of efficiency and fairness.

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  • (2023)Fairly Dividing Mixtures of Goods and Chores under Lexicographic PreferencesProceedings of the 2023 International Conference on Autonomous Agents and Multiagent Systems10.5555/3545946.3598632(152-160)Online publication date: 30-May-2023

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      cover image ACM Conferences
      AAMAS '19: Proceedings of the 18th International Conference on Autonomous Agents and MultiAgent Systems
      May 2019
      2518 pages
      ISBN:9781450363099

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      International Foundation for Autonomous Agents and Multiagent Systems

      Richland, SC

      Publication History

      Published: 08 May 2019

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      Author Tags

      1. efficiency
      2. fair division
      3. multiagent resource allocation

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      • (2023)Fairly Dividing Mixtures of Goods and Chores under Lexicographic PreferencesProceedings of the 2023 International Conference on Autonomous Agents and Multiagent Systems10.5555/3545946.3598632(152-160)Online publication date: 30-May-2023

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