Free-Entry and Stability in a Cournot Model

Gabrielle Demange

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Abstract: In a Cournot model for a single homogeneous good, we study simultaneously two stability properties of a Cournot equilibrium: the stability of a continuous quantity adjustment process with a fixed number of firms and the stability relative to entry. Under usual assumptions, we show that these two properties are consistent--i.e., there exists an equilibrium that is stable in both senses--and determine quite sharply the number of active firms.

Keywords: institutionalism; historical school; old and new institutional economics (search for similar items in EconPapers)
Date: 1986-12
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Citations: View citations in EconPapers (2)

Published in Journal of Economic Theory, 1986, 40 (2), pp.283-303

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Journal Article: Free entry and stability in a cournot model (1986)
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Persistent link: https://EconPapers.repec.org/RePEc:hal:journl:halshs-00670983

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