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ralph lauren polo

Hammoudi Abdelhakim and Giraud-héraud Eric
''On the Existence and uniqueness of Price Equilibrium with Multi-Store Firms''
( 2009, Vol. 29 No.2 )
The paper gives a proof of the existence and the uniqueness of price equilibrium in a multi-product, multi-firm competition framework. It illustrates how the price levels depends on the inter-brand portfolio substitution and on the intra-brand portfolio substitution
JEL: C0 - Mathematical and Quantitative Methods: General
L1 - Market Structure, Firm Strategy, and Market Performance: General
Manuscript Received : Dec 23 2008 Manuscript Accepted : May 06 2009

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