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| Hammoudi Abdelhakim and Giraud-héraud Eric |
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| ''On the Existence and uniqueness of Price Equilibrium with Multi-Store Firms'' |
| ( 2009, Vol. 29 No.2 ) |
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| 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 |
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| Keywords: |
JEL: L1 - Market Structure, Firm Strategy, and Market Performance: General |
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| Manuscript Received : Dec 23 2008 | | Manuscript Accepted : May 06 2009 |
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