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Article dans une revue American Economic Journal: Microeconomics Année : 2022

Friend-Based Ranking

Résumé

We analyze the design of a mechanism to extract a ranking of individuals according to a unidimensional characteristic, such as ability or need. Individuals, connected on a social network, only have local information about the ranking. We show that a planner can construct an ex post incentive compatible and efficient mechanism if and only if every pair of friends has a friend in common. We characterize the windmill network as the sparsest social network for which the planner can always construct a complete ranking.
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Dates et versions

halshs-03936275, version 1 (12-01-2023)

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Francis Bloch, Matthew Olckers. Friend-Based Ranking. American Economic Journal: Microeconomics, 2022, 14 (2), pp.176-214. ⟨10.1257/mic.20190333⟩. ⟨halshs-03936275⟩
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