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Informative Advertising and Product Differentiation

Author

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  • Christou, Charalambos
  • Vettas, Nikolaos

Abstract

We study informative advertising within a random-utility, non-localized competition model of product differentiation. In a symmetric equilibrium, advertisement is sub-optimal when product differentiation is small, and excessive otherwise. Increasing the number of firms may increase or decrease the market price. We emphasise that quasi-concavity of profits may fail, as firms may prefer a high price deviation, targeting consumers that only become informed about their product (a feature that, while present in earlier models of informative advertising, has not received enough attention). As product differentiation becomes small, a symmetric equilibrium does not exist.

Suggested Citation

  • Christou, Charalambos & Vettas, Nikolaos, 2003. "Informative Advertising and Product Differentiation," CEPR Discussion Papers 3953, C.E.P.R. Discussion Papers.
  • Handle: RePEc:cpr:ceprdp:3953
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    References listed on IDEAS

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    Cited by:

    1. Christou, C. & Vettas, N., 2008. "On informative advertising and product differentiation," International Journal of Industrial Organization, Elsevier, vol. 26(1), pages 92-112, January.

    More about this item

    Keywords

    informative advertising; non-localized competition; product differentiation; random utility;

    JEL classification:

    • D83 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Search; Learning; Information and Knowledge; Communication; Belief; Unawareness
    • L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets
    • L15 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Information and Product Quality

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