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Núñez, Matías; Sanver, M. Remzi
Social choice and welfare, 02/2021, Volume: 56, Issue: 2Journal Article
Abreu and Sen (J Econ Theory 50(2):285–299, 1990) provide a necessary condition, called Condition α , which is almost sufficient for a social choice rule to be implementable via subgame perfect equilibria. Yet, it is not straightforward to check the satisfaction of Condition α . We contribute in this direction by establishing a nuanced picture over the subgame perfect implementability of compromise rules, as a function of the compromise threshold. This contrasts with scoring rules that all fail to be subgame perfect implementable and with several Condorcet rules which are subgame perfect implementable.
