Local Strategy-proofness and Dictatorship
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arXiv
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| Auteurs principaux: | , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866911551721570304 |
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| author | Panda, Abinash Pramanik, Anup Saxena, Ragini |
| author_facet | Panda, Abinash Pramanik, Anup Saxena, Ragini |
| contents | We investigate preference domains under which every unanimous and locally strategy-proof social choice function (scf) satisfies dictatorship. We identify a condition on domains called connected with distinct neighbours which is necessary for dictatorship under unanimity and local strategy-proofness. Further, we show that this condition is sufficient within the class of domains where every unanimous and locally strategy-proof scf satisfies tops-onlyness. While a complete characterization remains open, we also show that on domains that are connected with distinct neighbours, unanimity and strategy-proofness (a stronger requirement) imply dictatorship. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_00913 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Local Strategy-proofness and Dictatorship Panda, Abinash Pramanik, Anup Saxena, Ragini Theoretical Economics We investigate preference domains under which every unanimous and locally strategy-proof social choice function (scf) satisfies dictatorship. We identify a condition on domains called connected with distinct neighbours which is necessary for dictatorship under unanimity and local strategy-proofness. Further, we show that this condition is sufficient within the class of domains where every unanimous and locally strategy-proof scf satisfies tops-onlyness. While a complete characterization remains open, we also show that on domains that are connected with distinct neighbours, unanimity and strategy-proofness (a stronger requirement) imply dictatorship. |
| title | Local Strategy-proofness and Dictatorship |
| topic | Theoretical Economics |
| url | https://arxiv.org/abs/2507.00913 |