A Rank-Based Assignment Lottery for an Assignment Problem

For a traditional assignment problem with the same number of objects and agents, we introduce a new assignment lottery based on the notion of rank and analyze some of its properties. In particular, we prove that, like the Random Serial Dictatorship, it is ex post efficient and guarantees positive pr...

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Main Author: Claudia Meo
Format: Article
Language:English
Published: MDPI AG 2025-06-01
Series:AppliedMath
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Online Access:https://www.mdpi.com/2673-9909/5/2/67
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author Claudia Meo
author_facet Claudia Meo
author_sort Claudia Meo
collection DOAJ
description For a traditional assignment problem with the same number of objects and agents, we introduce a new assignment lottery based on the notion of rank and analyze some of its properties. In particular, we prove that, like the Random Serial Dictatorship, it is ex post efficient and guarantees positive probability to each Pareto optimal deterministic assignment; moreover, the expected rank of this new assignment lottery, which is a measure of the social welfare, cannot be greater than the Random Serial Dictatorship’s one and there exist assignment problems where it is strictly lower.
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spelling doaj-art-75b7d26cd17d48f8a6eebea18768927d2025-08-20T03:26:57ZengMDPI AGAppliedMath2673-99092025-06-01526710.3390/appliedmath5020067A Rank-Based Assignment Lottery for an Assignment ProblemClaudia Meo0Dipartimento di Scienze Economiche e Statistiche, Università di Napoli Federico II, 80126 Naples, ItalyFor a traditional assignment problem with the same number of objects and agents, we introduce a new assignment lottery based on the notion of rank and analyze some of its properties. In particular, we prove that, like the Random Serial Dictatorship, it is ex post efficient and guarantees positive probability to each Pareto optimal deterministic assignment; moreover, the expected rank of this new assignment lottery, which is a measure of the social welfare, cannot be greater than the Random Serial Dictatorship’s one and there exist assignment problems where it is strictly lower.https://www.mdpi.com/2673-9909/5/2/67assignment problemsassignment lotteriesrank
spellingShingle Claudia Meo
A Rank-Based Assignment Lottery for an Assignment Problem
AppliedMath
assignment problems
assignment lotteries
rank
title A Rank-Based Assignment Lottery for an Assignment Problem
title_full A Rank-Based Assignment Lottery for an Assignment Problem
title_fullStr A Rank-Based Assignment Lottery for an Assignment Problem
title_full_unstemmed A Rank-Based Assignment Lottery for an Assignment Problem
title_short A Rank-Based Assignment Lottery for an Assignment Problem
title_sort rank based assignment lottery for an assignment problem
topic assignment problems
assignment lotteries
rank
url https://www.mdpi.com/2673-9909/5/2/67
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