Robust Minimal Instability of the Top Trading Cycles Mechanism

Battal Dogan, Lars Ehlers

Research output: Contribution to journalArticle (Academic Journal)peer-review

Abstract

In the context of priority-based allocation of objects, we formulate methods to compare assignments in terms of their stability. We introduce three basic properties that a reasonable stability comparison should satisfy. We show that, for any stability comparison satisfying the three properties, the top trading cycles mechanism is minimally unstable among efficient and strategy-proof mechanisms when objects have unit capacities. Our unifying approach covers basically all natural stability comparisons and establishes the robustness of a recent result by Abdulkadiro‎ǧlu et al. (2020). When objects have non-unit capacities, we characterize the capacity-priority structures for which our result is preserved.
Original languageEnglish
JournalAmerican Economic Journal: Microeconomics
Publication statusAccepted/In press - 5 Jan 2021

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