Pairwise-Stability and Nash Equilibria in Network Formation
Antoni Calvó-Armengol and
No 2005.34, Working Papers from Fondazione Eni Enrico Mattei
Suppose that individual payoffs depend on the network connecting them. Consider the following simultaneous move game of network formation: players announce independently the links they wish to form, and links are formed only under mutual consent. We provide necessary and sufficient conditions on the network link marginal payoffs such that the set of pairwise stable, pairwise-Nash and proper equilibrium networks coincide, where pairwise stable networks are robust to one-link deviations, while pairwise-Nash networks are robust to one-link creation but multi-link severance. Under these conditions, proper equilibria in pure strategies are fully characterized by one-link deviation checks.
Keywords: Network formation; Pairwise-stability; Proper equilibrium (search for similar items in EconPapers)
JEL-codes: C62 C72 D85 L14 (search for similar items in EconPapers)
New Economics Papers: this item is included in nep-gth and nep-net
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Journal Article: Pairwise-stability and Nash equilibria in network formation (2009)
Working Paper: Pairwise-Stability and Nash Equilibria in Network Formation (2004)
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Persistent link: https://EconPapers.repec.org/RePEc:fem:femwpa:2005.34
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