Heterogeneous or Homogeneous Quantity Competition

Jeffrey Kline

Working Papers from Australian National University - Department of Economics

Abstract: We consider when homogeneous goods quantity competition models are payoff equivalent to heterogeneous goods models. When they are equivalent, changes in some cost parameters are equivalent to changes in some demand parameters. Going from homogeneous models to heteregeneous models is always possible, but the converse is not easy. We characterize when the converse is possible for linearly separable and multiplicatively separable heterogeneous models. These results have implications that blur the distinction between process and product innovation.

Keywords: OLIGOPOLIES; MARKETS STRUCTURES; COMPETITION (search for similar items in EconPapers)
JEL-codes: L13 (search for similar items in EconPapers)
Pages: 8 pages
Date: 1998
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Journal Article: Heterogeneous or homogeneous quantity competition (2000)
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Persistent link: https://EconPapers.repec.org/RePEc:fth:aunaec:355

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