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Optimal R&D Investment Strategies with Quantity Competition under the Threat of Superior Entry


  • Ruslan Lukach
  • Peter M. Kort
  • Joseph Plasmans


This paper studies R&D investment decisions of a firm facing the threat of new technology entry and subject to technical uncertainty. We distinguish four scenarios: inevitable entry, entry deterrence, entry blockade, and non-credible entry threat. The entry threat stimulates the incumbent to innovate in case entry prevention is possible, but discourages R&D if entry is inevitable. In the case of entry deterrence the incumbent successfully prevents entry by innovating. Greater technical uncertainty stimulates starting R&D and can result in implementation of more expensive research projects. The welfare analysis shows that the relation between welfare and entry cost and between welfare and uncertainty is non-monotonic.

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  • Ruslan Lukach & Peter M. Kort & Joseph Plasmans, 2005. "Optimal R&D Investment Strategies with Quantity Competition under the Threat of Superior Entry," CESifo Working Paper Series 1385, CESifo Group Munich.
  • Handle: RePEc:ces:ceswps:_1385

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    References listed on IDEAS

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    8. Glenn C. Loury, 1979. "Market Structure and Innovation," The Quarterly Journal of Economics, Oxford University Press, vol. 93(3), pages 395-410.
    9. Gilbert, Richard J & Newbery, David M G, 1982. "Preemptive Patenting and the Persistence of Monopoly," American Economic Review, American Economic Association, vol. 72(3), pages 514-526, June.
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    11. Thomas, Louis A., 1999. "Incumbent firms' response to entry: Price, advertising, and new product introduction," International Journal of Industrial Organization, Elsevier, vol. 17(4), pages 527-555, May.
    12. Johannes van Biesebroeck, 2003. "Productivity Dynamics with Technology Choice: An Application to Automobile Assembly," Review of Economic Studies, Oxford University Press, vol. 70(1), pages 167-198.
    13. N. Gregory Mankiw & Michael D. Whinston, 1986. "Free Entry and Social Inefficiency," RAND Journal of Economics, The RAND Corporation, vol. 17(1), pages 48-58, Spring.
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    investment under uncertainty; real options; R&D; competition;

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