Constitutional implementation

Bezalel Peleg*, Eyal Winter

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Scopus citations


We consider the problem of implementing a social choice correspondence H in Nash equilibrium when the constitution of the society is given by an effectivity function E. It is assumed that the effectivity function of H, E H, is a sub-correspondence of E. We found necessary and efficient conditions for a game form Γ to implement H (in Nash equilibria), and to satisfy, at the same time, that EΓ, the effectivity function of Γ, is a sub-correspondence of EH (which guarantees that Γ is compatible with E). We also find sufficient conditions for the coincidence of the set of winning coalitions of EΓ and E H, and for EΓ = EH. All our results are sharp as is shown by suitable examples.

Original languageAmerican English
Pages (from-to)187-204
Number of pages18
JournalReview of Economic Design
Issue number2
StatePublished - 2002


  • Effectivity function
  • Implementation
  • Nash equilibrium


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