Local vs. global strategy-proofness: A new equivalence result for ordinal mechanisms

Peng Liu

Economics Letters, 2020, vol. 189, issue C

Abstract: We study two incentive compatibility notions of ordinal mechanisms: strategy-proofness and a new notion of local strategy-proofness, called block-adjacent strategy-proofness, which requires no gain by a flip of two adjacent blocks. A condition on the preference domain called path-nestedness is identified as sufficient for the equivalence between these two notions.

Keywords: Ordinal mechanism; Block-adjacent strategy-proofness; Path-nested (search for similar items in EconPapers)
JEL-codes: D71 (search for similar items in EconPapers)
Date: 2020
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Persistent link: https://EconPapers.repec.org/RePEc:eee:ecolet:v:189:y:2020:i:c:s0165176520300380

DOI: 10.1016/j.econlet.2020.109008

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