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

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  • Wesley M. Cohen
  • Richard C. Levin
  • David C. Mowery
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    Abstract

    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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    Bibliographic Info

    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

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    References

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    1. John Bound & Clint Cummins & Zvi Griliches & Bronwyn H. Hall & Adam B. Jaffe, 1982. "Who Does R&D and Who Patents?," NBER Working Papers 0908, National Bureau of Economic Research, Inc.
      • 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.
    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. Fisher, Franklin M & Temin, Peter, 1973. "Returns to Scale in Research and Development: What Does the Schumpeterian Hypothesis Imply ?," Journal of Political Economy, University of Chicago Press, vol. 81(1), pages 56-70, Jan.-Feb..
    4. Harvey, A C, 1976. "Estimating Regression Models with Multiplicative Heteroscedasticity," Econometrica, Econometric Society, vol. 44(3), pages 461-65, May.
    5. 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.
    6. Chamberlain, Gary, 1980. "Analysis of Covariance with Qualitative Data," Review of Economic Studies, Wiley Blackwell, vol. 47(1), pages 225-38, January.
    7. James Tobin, 1956. "Estimation of Relationships for Limited Dependent Variables," Cowles Foundation Discussion Papers 3R, Cowles Foundation for Research in Economics, Yale University.
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