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The Invariance of R&D to the Number of Firms in the Industry

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  • Raaj Kumar Sah
  • Joseph E. Stiglitz

Abstract

Thi spaper presents certain remarkably simple results concerning market's allocation to R&D and its comparison to socially efficient allocations. We posit that a firm can undertake more than one project aimed at the same innovation, and consider a product market characterized by Bertrand competition. Among the results we obtain is that the market R&D (that is, the number of projects undertaken, and the effort spent on different projects) is invariant to the number of firms. We also examine the effects of the number of firms on the gains from innovation to consumers, firms, and society, and show, in particular, that the market undertakes less R&D than is socially desirable.

Suggested Citation

  • Raaj Kumar Sah & Joseph E. Stiglitz, 1986. "The Invariance of R&D to the Number of Firms in the Industry," NBER Working Papers 1798, National Bureau of Economic Research, Inc.
  • Handle: RePEc:nbr:nberwo:1798
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    1. Glenn C. Loury, 1979. "Market Structure and Innovation," The Quarterly Journal of Economics, Oxford University Press, vol. 93(3), pages 395-410.
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    Cited by:

    1. Yevgeniy Popov & Maksim Vlasov & Anna Shishkina & Anastasia Yakimova, 2016. "Institutional Analysis of Knowledge Generation Resource Potential at the Enterprises of Regional Military-Industrial Complex," Economy of region, Centre for Economic Security, Institute of Economics of Ural Branch of Russian Academy of Sciences, vol. 1(3), pages 839-851.
    2. Igor Letina, 2013. "The road not taken: competition and the R&D portfolio," ECON - Working Papers 127, Department of Economics - University of Zurich, revised Aug 2015.
    3. Bhattacharya, Sudipto & Glazer, Jacob & Sappington, David E. M., 1992. "Licensing and the sharing of knowledge in research joint ventures," Journal of Economic Theory, Elsevier, vol. 56(1), pages 43-69, February.
    4. Svetlana Panikarova & Maxim Vlasov, 2016. "Knowledge Generation Strategies: Empirical Analysis of Industrial Enterprises," Journal of Information & Knowledge Management (JIKM), World Scientific Publishing Co. Pte. Ltd., vol. 15(02), pages 1-11, June.
    5. Wittwer, Milena, 2017. "Centralizing Disconnected Markets? An Irrelevance Result," MPRA Paper 76534, University Library of Munich, Germany.
    6. Richard Gilbert, 2006. "Looking for Mr. Schumpeter: Where Are We in the Competition-Innovation Debate?," NBER Chapters,in: Innovation Policy and the Economy, Volume 6, pages 159-215 National Bureau of Economic Research, Inc.
    7. Gambardella, Alfonso, 2013. "The economic value of patented inventions: Thoughts and some open questions," International Journal of Industrial Organization, Elsevier, vol. 31(5), pages 626-633.

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