Endogenous Heterogeneity in Strategic Models: Symmetry-breaking via Strategic Substitutes and Nonconcavities

Rabah AMIR, Filomena Garcia () and Malgorzata Knauff

No 2006/29, Working Papers from Department of Economics at the School of Economics and Management (ISEG), Technical University of Lisbon.

Abstract: This paper is an attempt to develop a unified approach to endogenous heterogeneity by constructing general class of two-player symmetric games that always possess only asymmetric pure-strategy Nash equilibria. These classes of games are characterized in some abstract sense by two general properties: payo? non-concavities and some form of strategic substitutability. We provide a detailed discussion of the relationship of this work with Matsuyama’s symmetry breaking framework and with business strategy literature. Our framework generalizes a number of models dealing with two-stage games, with long term investment decisions in the first stage and product market competition in the second stage. We present the main examples that motivate this study to illustrate the generality of our approach.

Keywords: firm heterogeneity; submodular games; business strategy; innovation strategies. (search for similar items in EconPapers)
JEL-codes: C72 C62 L11 (search for similar items in EconPapers)
New Economics Papers: this item is included in nep-com, nep-cse, nep-gth and nep-mic
Date: 2006
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Working Paper: Endogenous heterogeneity in strategic models: symmetry-breaking via strategic substitutes and nonconcavities (2006)
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Persistent link: http://EconPapers.repec.org/RePEc:ise:isegwp:wp292006

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