Stationary consistent equilibrium coalition structures constitute the recursive core

Kóczy, Á L [Kóczy, László Áron (Kóczy Á. László), author] Institute of Economics (MTA KRTK)

English Article (Journal Article) Scientific
  • Gazdaságtudományi Doktori Minősítő Bizottság: B nemzetközi
  • SJR Scopus - Applied Mathematics: Q2
Identifiers
Fundings:
  • (LP-004/2010) Funder: MTA Lendület
Subjects:
  • Mathematics
  • Microeconomics, behavioural economics
Abstract We study coalitional games where the coalitional payoffs depend on the embedding coalition structure. We introduce a noncooperative, sequential coalition formation model and show that the set of equilibrium outcomes coincides with the recursive core, a generalisation of the core to such games. In order to extend past results limited to totally recursive-balanced partition function form games we introduce a more permissive perfectness concept, subgame-consistency that only requires perfectness in selected subgames. Due to the externalities, the profitability of deviations depends on the partition formed by the remaining players: the stability of core payoff configurations is ensured by a combination of the pessimism of players going for certain profits only and the assumption that players base their stationary strategies on a made-up history punishing some of the possible deviators—and getting this sometimes right.
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2025-04-24 17:00