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When Stackelberg and Cournot Equilibria Coincide

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  • Colombo Luca

    ()
    (Middlesex University and University of Bologna)

  • Labrecciosa Paola

    ()
    (Middlesex University and University of Bologna)

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    Abstract

    We take a new look at the comparison between the Stackelberg equilibrium and the Cournot equilibrium. We show that, when the elasticity of the inverse market demand equals the curvature of the inverse market demand weighted by the Lerner Index, a generic Stackelberg leader sets the same quantity and earns the same profit as a generic Stackelberg follower. When the curvature of the inverse market demand equals the total number of firms in the industry, a coincidence among the quantities produced by a first mover, a second mover, and a generic firm facing Cournot competition occurs.

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    Bibliographic Info

    Article provided by De Gruyter in its journal The B.E. Journal of Theoretical Economics.

    Volume (Year): 8 (2008)
    Issue (Month): 1 (January)
    Pages: 1-7

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    Handle: RePEc:bpj:bejtec:v:8:y:2008:i:1:n:1

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    Cited by:
    1. Bruno Versaevel, 2009. "Cumulative Leadership and Entry Dynamics," Working Papers 0906, Groupe d'Analyse et de Théorie Economique (GATE), Centre national de la recherche scientifique (CNRS), Université Lyon 2, Ecole Normale Supérieure.
    2. Antonio Ruiz-Porras, 2008. "Los beneficios del liderazgo en el mercado de depositos bancarios: una comparacion entre Cournot y Stackelberg," EconoQuantum, Revista de Economia y Negocios, Universidad de Guadalajara, Centro Universitario de Ciencias Economico Administrativas, Departamento de Metodos Cuantitativos y Maestria en Economia., vol. 4(2), pages 79-105, Enero-Jun.

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