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Irrelevance of the choice of strategic variables in duopoly under relative profit maximization

Economics and Business Letters

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Title Irrelevance of the choice of strategic variables in duopoly under relative profit maximization
 
Creator Tanaka, Yasuhito
 
Description We study the choice of strategic variables by firms in a duopoly in which two firms produce differentiated substitutable goods and each firm maximizes its relative profit that is the difference between its profit and the profit of the rival firm. We consider a two stage game such that in the first stage the firms choose their strategic variables and in the second stage they determine the values of their strategic variables. We show that when the firms maximize their relative profits, the choice of strategic variables is irrelevant to the outcome of the game in the sense that the equilibrium outputs, prices and profits of the firms are the same in all situations, and so any combination of strategy choice by the firms constitutes a sub-game perfect equilibrium in the two stage game. We assume that demand functions for the goods are symmetric and linear, the marginal costs of the firms are common and constant, and the fixed costs are zero.
 
Publisher Oviedo University Press
 
Contributor
 
Date 2013-06-17
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion

 
Format application/pdf
 
Identifier http://www.unioviedo.es/reunido/index.php/EBL/article/view/9904
10.17811/ebl.2.2.2013.75-83
 
Source Economics and Business Letters; Vol 2, No 2 (2013): June; 75-83
Economics and Business Letters; Vol 2, No 2 (2013): June; 75-83
2254-4380
10.17811/ebl.2.2.2013
 
Language eng
 
Relation http://www.unioviedo.es/reunido/index.php/EBL/article/view/9904/9686
 
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