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R&D Spillovers, Innovation, and Entry


  • Khazabi, Massoud
  • Quyen, Nguyen


The paper extends a theoratical framework to analyze the impact of R&D spillovers on entry and the resulting equilibrium market structure. It is shown that the degree of spillovers plays a fundamental role on the number of firms entering the market, their R&D activities, and social welfare. The analysis suggests that social welfare is maximized at some intermediate degree of spillovers. The policy implication of this result is that neither complete protection of intellectual property right nor lax enforcement of patent laws is socially optimal.

Suggested Citation

  • Khazabi, Massoud & Quyen, Nguyen, 2011. "R&D Spillovers, Innovation, and Entry," MPRA Paper 39460, University Library of Munich, Germany.
  • Handle: RePEc:pra:mprapa:39460

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    References listed on IDEAS

    1. Erkal, Nisvan & Piccinin, Daniel, 2010. "Cooperative R&D under uncertainty with free entry," International Journal of Industrial Organization, Elsevier, vol. 28(1), pages 74-85, January.
    2. Gamal Atallah, 2007. "Entry Deterrence through Fixed Cost Reducing R&D," Rivista di Politica Economica, SIPI Spa, vol. 97(4), pages 49-78, July-Augu.
    3. Poyago-Theotoky, Joanna, 1995. "Equilibrium and Optimal Size of a Research Joint Venture in an Oligopoly with Spillovers," Journal of Industrial Economics, Wiley Blackwell, vol. 43(2), pages 209-226, June.
    4. Gamal Atallah, 2002. "Vertical R&D Spillovers, Cooperation, Market Structure, and Innovation," Economics of Innovation and New Technology, Taylor & Francis Journals, vol. 11(3), pages 179-209.
    5. Suetens, Sigrid, 2005. "Cooperative and noncooperative R&D in experimental duopoly markets," International Journal of Industrial Organization, Elsevier, vol. 23(1-2), pages 63-82, February.
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    More about this item


    R&D; Entry; Spillovers;

    JEL classification:

    • L22 - Industrial Organization - - Firm Objectives, Organization, and Behavior - - - Firm Organization and Market Structure


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