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Communautés de consommateurs croyances et auto-organisation

Author

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  • Stéphane Ngo-Maï
  • Alain Raybaut

Abstract

The increasing weight of both interactions and informational goods in our economies lead to consider explicitly such issues as the economic consequences of individual and collective beliefs. We analyze in this paper how homogeneous self-organizing communities of consumers emerge from these different types of beliefs. Using a self-organization approach, the model we propose allows for an analytical solution in terms of the stationary distribution of the size and the mean number of communities. This distribution is sensible to the relative weight of individual and collective beliefs. An interesting characteristic is the appearance of a power law distribution meaning the coexistence of some diversity and strong polarization. This kind of distribution is obtained when collective beliefs leading to imitative behaviors are strong enough. Classification JEL : D11, D83

Suggested Citation

  • Stéphane Ngo-Maï & Alain Raybaut, 2002. "Communautés de consommateurs croyances et auto-organisation," Revue d'économie politique, Dalloz, vol. 112(5), pages 739-754.
    • Handle: RePEc:cai:repdal:redp_125_0739
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    More about this item

    Keywords

    croyances; interactions sociales; communautés de consommateurs; auto organisation; loi de puissance;
    All these keywords.

    JEL classification:

    • D11 - Microeconomics - - Household Behavior - - - Consumer Economics: Theory
    • D83 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Search; Learning; Information and Knowledge; Communication; Belief; Unawareness

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