INTERNATIONAL TRADE AND COURNOT EQUILIBRIUM: EXISTENCE, UNIQUENESS AND COMPARATIVE STATICS*
作者:
David Collie,
期刊:
Bulletin of Economic Research
(WILEY Available online 1992)
卷期:
Volume 44,
issue 1
页码: 55-66
ISSN:0307-3378
年代: 1992
DOI:10.1111/j.1467-8586.1992.tb00506.x
出版商: Blackwell Publishing Ltd
数据来源: WILEY
摘要:
ABSTRACTThis paper proves the existence and uniqueness of Cournot equilibrium in models of international trade under oligopoly. The existence of Cournot equilibrium is established without the usual assumption that profit functions are concave. Instead the proof uses a weaker‘aggregate concavity’condition. A simple proof is used to establish the uniqueness of the equilibrium. And, the paper considers the implications of the assumptions, used to prove the existence and uniqueness of the equilibrium, on the comparative static resu
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