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On price stability and the nature of product differentiation

Author

Listed:
  • Joaquín Andaluz

    (University of Zaragoza)

  • Gloria Jarne

    (University of Zaragoza)

Abstract

In a spatial competition model, we analyze the stability of the Nash-price equilibrium under horizontal and vertical product differentiation, considering both homogenous and heterogeneous expectations. Regardless of the nature of product differentiation, assuming that firms behave according to an adaptive expectations rule, it is found that the Nash-price equilibrium is asymptotically stable. If at least one firm follows the gradient rule based on marginal profit, an increase in the adjustment speed turns out to be a source of complexity. Moreover, the influence of the locations on price stability depends on the nature of product differentiation and on the expectations scheme.

Suggested Citation

  • Joaquín Andaluz & Gloria Jarne, 2019. "On price stability and the nature of product differentiation," Journal of Evolutionary Economics, Springer, vol. 29(2), pages 741-762, April.
    • Handle: RePEc:spr:joevec:v:29:y:2019:i:2:d:10.1007_s00191-018-0584-2
    DOI: 10.1007/s00191-018-0584-2
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    References listed on IDEAS

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    More about this item

    Keywords

    Horizontal product differentiation; Vertical product differentiation; Bounded rationality; Dynamic stability;
    All these keywords.

    JEL classification:

    • C62 - Mathematical and Quantitative Methods - - Mathematical Methods; Programming Models; Mathematical and Simulation Modeling - - - Existence and Stability Conditions of Equilibrium
    • D43 - Microeconomics - - Market Structure, Pricing, and Design - - - Oligopoly and Other Forms of Market Imperfection
    • L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets

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