On Equilibrium Refinement in Supermodular Games
Oriol Carbonell-Nicolau and
Richard McLean
Departmental Working Papers from Rutgers University, Department of Economics
Abstract:
We show that supermodular games satisfying sequential better-reply security possess a pure strategy perfect equilibrium and a strategically stable set of pure strategies. We illustrate that, in continuous supermodular games, perfect equilibria may contain weakly dominated actions. Moreover, in discontinuous supermodular games, perfect equilibria may involve play of actions in the interior of the set of weakly dominated actions. We prove that when the set of undominated actions is a sublattice, supermodular games satisfying sequential better-reply security possess pure strategy perfect equilibria that can be obtained as limits of undominated actions.
Keywords: supermodular game; weakly dominated strategy; trembling-hand perfect equilibrium; strategically stable set (search for similar items in EconPapers)
JEL-codes: C72 (search for similar items in EconPapers)
Pages: 20 pages
Date: 2012-12-26
New Economics Papers: this item is included in nep-hpe
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Journal Article: On equilibrium refinements in supermodular games (2015) 
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Persistent link: https://EconPapers.repec.org/RePEc:rut:rutres:201207
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