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Econometrica Vol. 55 No. 5 1987

Dynamic Duopolistic Competition with Sticky Prices

Chaim Fershtman; Morton I. Kamien

Abstract

The authors study duopolistic competition in a homogeneous good through time under the assumption that its current desirability is an exponentially-weighted function of accumulated past consumption. This implies that the current price of the good does not decline by as much to accommodate any given level of current consumption. Our an alysis is conducted in terms of a differential game. It is found that the equilibrium price corresponding to the open-loop Nash equilibriu m strategies approaches the static Cournot equilibrium price while th e equilibrium price corresponding to the closed-loop Nash equilibrium strategies, which are subgame perfect, approaches a price below it.

DOI
10.2307/1911265
Volume
55
Issue
5
Pages
1151
Sources
bibtex:phds-export.bib crossref openalex

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