Consistent Conjectural Variations Equilibrium in the Semi-Mixed Oligopoly

Gabriela Renata Huarachi-Benavídez, José Guadalupe Flores-Muñiz, Nataliya Kalashnykova and Viacheslav Kalashnikov

Mathematical Problems in Engineering, 2021, vol. 2021, 1-14

Abstract:

We study a variant of the mixed oligopoly model with conjectural variations equilibrium, in which one of the producers maximizes not his net profit but the convex combination of the latter with the domestic social surplus. The coefficient of this convex combination is named socialization level. The producers’ conjectures concern the price variations depending upon their production output variations. In this work, we extend the models studied before, considering the case of the producers’ cost functions being convex but not necessarily quadratic. The notion of exterior and interior equilibrium is introduced (similarly to previous works), developing a consistency criterion for the conjectures. Existence and uniqueness theorems are formulated and proven. Results concerning the comparison between conjectural variations, perfect competition, and Cournot equilibriums are provided. Based on these results, we formulate an optimality criterion for the election of the socialization level. The existence of the optimal socialization level is proven under the condition that the public company cannot be too weak as compared to the private firms.

Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jnlmpe:9997740

DOI: 10.1155/2021/9997740

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