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Firm Size and R&D Intensity: A Re-Examination

  • Wesley M. Cohen
  • Richard C. Levin
  • David C. Mowery
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    Using data from the Federal Trade Commission's Line of Business Program and survey measures of technological opportunity and appropriability conditions, this paper finds that overall firm size has a very small, statistically in- significant effect on business unit R & D intensity when either fixed industry effects or measured industry characteristics are taken into account. Business unit size has no effect on the R & D intensity of business units that perform R & D, but it affects the probability of conducting R & D. Business unit and firm size jointly explain less than one per cent of the variance in R & D intensity; industry effects explain nearly half the variance.

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    File URL: http://www.nber.org/papers/w2205.pdf
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    Paper provided by National Bureau of Economic Research, Inc in its series NBER Working Papers with number 2205.

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    Date of creation: Mar 1987
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    Publication status: published as Cohen, Wesley M., Richard C. Levin and David C. Mowery. "Firm Size and R&D Intensity: A Re-Examination," Journal of Industrial Economics, Vol. XXXV, No. 4, June 1987, pp. 543-565.
    Handle: RePEc:nbr:nberwo:2205
    Note: PR
    Contact details of provider: Postal: National Bureau of Economic Research, 1050 Massachusetts Avenue Cambridge, MA 02138, U.S.A.
    Phone: 617-868-3900
    Web page: http://www.nber.org
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    1. James Tobin, 1956. "Estimation of Relationships for Limited Dependent Variables," Cowles Foundation Discussion Papers 3R, Cowles Foundation for Research in Economics, Yale University.
    2. John Scott, 1984. "Firm versus Industry Variability in R&D Intensity," NBER Chapters, in: R&D, Patents, and Productivity, pages 233-248 National Bureau of Economic Research, Inc.
    3. McDonald, John F & Moffitt, Robert A, 1980. "The Uses of Tobit Analysis," The Review of Economics and Statistics, MIT Press, vol. 62(2), pages 318-21, May.
    4. F. M. Fisher & P. Temin, 1971. "Returns-to-Scale in Research and Development: What Does the Schupeterian Hypothesis Imply?," Working papers 74, Massachusetts Institute of Technology (MIT), Department of Economics.
    5. John Bound & Clint Cummins & Zvi Griliches & Bronwyn H. Hall & Adam B. Jaffe, 1984. "Who Does R&D and Who Patents?," NBER Chapters, in: R&D, Patents, and Productivity, pages 21-54 National Bureau of Economic Research, Inc.
    6. Chamberlain, Gary, 1980. "Analysis of Covariance with Qualitative Data," Review of Economic Studies, Wiley Blackwell, vol. 47(1), pages 225-38, January.
    7. Harvey, A C, 1976. "Estimating Regression Models with Multiplicative Heteroscedasticity," Econometrica, Econometric Society, vol. 44(3), pages 461-65, May.
    8. Jacques Cremer & Marvin A. Sirbu JR, 1978. "Une analyse économétrique de l'effort de recherche et développement de l'industrie française," Revue Économique, Programme National Persée, vol. 29(5), pages 940-957.
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