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Dynamic Games of R&D Competition in a Differentiated Duopoly

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  • Changying Li
  • Jianhu Zhang

Abstract

Based on a Hotelling-type model, this paper analyzes a differential game where two firms engage in quality-enhancing research and development (R&D). The analysis is formulated in terms of open-loop and feedback solutions. We find that the open-loop stationary levels of R&D and quality are socially efficient. Moreover, compared to open-loop strategies, feedback strategies lead to higher stationary levels of prices and profits, but lower levels of R&D, quality, consumer surplus, and social welfare. In addition, compared to the social optimum, both open-loop and feedback strategies yield a closer stationary distance between the two firms.

Suggested Citation

  • Changying Li & Jianhu Zhang, 2013. "Dynamic Games of R&D Competition in a Differentiated Duopoly," Journal of Institutional and Theoretical Economics (JITE), Mohr Siebeck, Tübingen, vol. 169(4), pages 660-679, December.
  • Handle: RePEc:mhr:jinste:urn:sici:0932-4569(201312)169:4_660:dgorci_2.0.tx_2-1
    DOI: 10.1628/093245613X671184
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    References listed on IDEAS

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    More about this item

    JEL classification:

    • C73 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Stochastic and Dynamic Games; Evolutionary Games
    • L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets
    • D43 - Microeconomics - - Market Structure, Pricing, and Design - - - Oligopoly and Other Forms of Market Imperfection
    • D92 - Microeconomics - - Micro-Based Behavioral Economics - - - Intertemporal Firm Choice, Investment, Capacity, and Financing

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