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| Pierre von Mouche and Federico Quartieri |
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| ''Cournot Equilibrium Uniqueness in Case of Concave Industry Revenue: a Simple Proof'' |
| ( 2015, Vol. 35 No.2 ) |
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| A simple proof of an equilibrium uniqueness result by Murphy, Sherali and Soyster for homogeneous Cournot oligopolies with concave industry revenue function and convex cost functions is provided. Adapting this proof, a substantial improvement of their result is obtained; the improvement concerns capacity constraints, non-differentiable cost functions and industry revenue functions that are discontinuous at 0. |
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| Keywords: Concave industry revenue, Cournot oligopoly, equilibrium uniqueness |
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| Manuscript Received : Sep 01 2014 | | Manuscript Accepted : Jun 01 2015 |
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