Cournot duopoly games with isoelastic demands and diseconomies of scale

Xiaoliang Li

Papers from arXiv.org

Abstract: In this discussion draft, we investigate five different models of duopoly games, where the market is assumed to have an isoelastic demand function. Moreover, quadratic cost functions reflecting decreasing returns to scale are considered. The games in this draft are formulated with systems of two nonlinear difference equations. Existing equilibria and their local stability are analyzed by symbolic computations. In the model where a gradiently adjusting player and a rational (or a boundedly rational) player compete with each other, diseconomies of scale are proved to have an effect of stability enhancement, which is consistent with the similar results found by Fisher for homogeneous oligopolies with linear demand functions.

Date: 2022-03
New Economics Papers: this item is included in nep-com, nep-gth, nep-ind, nep-ore and nep-reg
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Persistent link: https://EconPapers.repec.org/RePEc:arx:papers:2203.09972

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