Sufficient and necessary conditions for equilibrium uniqueness in aggregative games

P.H.M. van Mouche, T. Yamazaki

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3 Citations (Scopus)


We identify sufficient and necessary conditions for an aggregative game to have a unique Nash equilibrium. In particular, an improvement of a result of Gaudet and Salant (1991) for Cournot oligopolies is obtained. The results are obtained by exploiting the general between Nash equilibria and fixed points of the (virtual) aggregate cumulative best reply correspondence.
Original languageEnglish
Pages (from-to)353-364
JournalJournal of Nonlinear and Convex Analysis
Issue number2
Publication statusPublished - 2015



  • cournot equilibrium

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