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Innovation et délimitation des marchés pertinents

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  • Jean-Louis Lesquins

Abstract

[fre] Comment déterminer l'appartenance à un marché préexistant de produits innovants ? Selon l'analyse traditionnelle, le critère déterminant est celui de la substituabilité au point de vue de la demande, qui suppose l'observation de substitutions réversibles entre produits dont la coexistence sur le marché est durable. Cette situation est retracée par l'observation d'élasticités croisées des demandes aux prix. Cette analyse est prise en défaut par les phénomènes de remplacement d'un produit par un autre : on ne peut en déduire que tous deux sont nécessairement, et tout au long du processus, sur le même marché. Mais on ne peut pas plus tirer la conséquence inverse du fait que leur coexistence n'est pas durable et que les élasticités croisées ne sont observées que de manière asymétrique. Un assouplissement limité des critères traditionnels d'analyse est donc requis. [eng] Which approach should be used to determine whether innovative products are part of an already existing market ? According to traditional analysis, the key criterion is substitutability of demand. This implies identification of reversible substitution between products coexisting lastingly on the market by observing cross-price elasticities of demand. This analysis can no longer be used when a product is replaced with another : it can not be concluded that both are necessarily on the same market throughout the process. However, it is equally impossible to conclude the reverse because their coexistence is not lasting and the only cross-elasticities which are observed are asymmetrical. Hence, within limits it is necessary to improve the flexibility of traditional analysis criteria.

Suggested Citation

  • Jean-Louis Lesquins, 1994. "Innovation et délimitation des marchés pertinents," Revue d'Économie Industrielle, Programme National Persée, vol. 70(1), pages 7-15.
  • Handle: RePEc:prs:recind:rei_0154-3229_1994_num_70_1_1544
    DOI: 10.3406/rei.1994.1544
    Note: DOI:10.3406/rei.1994.1544
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