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Innovation and Imitation Incentives in Dynamic Duopoly

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  • Richard Ruble

    (EM - EMLyon Business School, GATE Lyon Saint-Étienne - Groupe d'Analyse et de Théorie Economique Lyon - Saint-Etienne - ENS de Lyon - École normale supérieure de Lyon - UL2 - Université Lumière - Lyon 2 - UCBL - Université Claude Bernard Lyon 1 - Université de Lyon - UJM - Université Jean Monnet - Saint-Étienne - CNRS - Centre National de la Recherche Scientifique)

  • Etienne Billette de Villemeur

    (GREMAQ - Groupe de recherche en économie mathématique et quantitative - UT Capitole - Université Toulouse Capitole - UT - Université de Toulouse - INRA - Institut National de la Recherche Agronomique - EHESS - École des hautes études en sciences sociales - CNRS - Centre National de la Recherche Scientifique)

  • Bruno Versaevel

    (EM - EMLyon Business School, GATE Lyon Saint-Étienne - Groupe d'Analyse et de Théorie Economique Lyon - Saint-Etienne - ENS de Lyon - École normale supérieure de Lyon - UL2 - Université Lumière - Lyon 2 - UCBL - Université Claude Bernard Lyon 1 - Université de Lyon - UJM - Université Jean Monnet - Saint-Étienne - CNRS - Centre National de la Recherche Scientifique)

Abstract

We study entry in a growing market by ex-ante symmetric duopolists when sunk costs differ for the innovating and imitating firm. Strategic competition takes the form either of a preemption race or of a war of attrition, the latter being likelier when demand uncertainty is high. Industry value is maximized when firms seek neither to race nor to delay investment. Free imitation is socially costly, and if the consumer surplus resulting from imitation is not too large the socially optimal imitation cost, as may be induced by patent protection, involves preemption. Finally, we discuss endogenous entry barriers and contractual alternatives that increase the likelihood of preemption regimes, with differing implications for imitator entry. When the cost of imitation is low for instance, innovators are shown to rely more heavily on trade secrecy and patents. Welfare-enhancing takeovers and licensing are also shown to occur.
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Suggested Citation

  • Richard Ruble & Etienne Billette de Villemeur & Bruno Versaevel, 2015. "Innovation and Imitation Incentives in Dynamic Duopoly," Post-Print halshs-01232714, HAL.
    • Handle: RePEc:hal:journl:halshs-01232714
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    References listed on IDEAS

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    More about this item

    Keywords

    Real option; Dynamic oligopoly; Knowledge spillover;
    All these keywords.

    JEL classification:

    • G31 - Financial Economics - - Corporate Finance and Governance - - - Capital Budgeting; Fixed Investment and Inventory Studies
    • L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets
    • O33 - Economic Development, Innovation, Technological Change, and Growth - - Innovation; Research and Development; Technological Change; Intellectual Property Rights - - - Technological Change: Choices and Consequences; Diffusion Processes

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