首页|A discontinuous model of duopoly with isoelastic demand and innovation costs

A discontinuous model of duopoly with isoelastic demand and innovation costs

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The paper studies the dynamic properties of a duopoly game in which firms strategically compete in quality enhancing innovation investments and quantities. Market demands are assumed to be isolastic (reciprocal to the price) functions. The non-linearity of the demand functions, as already highlighted by T. Puu in [11], suggests the existence of complicated dynamics (cyclical or chaotic) in a standard dynamic Cournot duopoly. In addition to this, competition in innovation introduces the presence of discontinuities in the best response functions, expanding the set of possible equilibria (including asymmetric and multiple ones) of the standard Cournot duopoly and further enriching the dynamic features of the model. (c) 2022 Elsevier Ltd. All rights reserved.

Discontinuous best response functionsNon-linear demand functionsDynamic global analysisLearningEQUILIBRIUM SELECTION

Lamantia, Fabio、Pezzino, Mario、Scardamaglia, Bruno、Tramontana, Fabio

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Univ Calabria

Univ Manchester

2022

Chaos, Solitons and Fractals

Chaos, Solitons and Fractals

EI
ISSN:0960-0779
年,卷(期):2022.158
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