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R&D and Productivity Growth in Japanese Manufacturing Firms

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  • KWON Hyeog Ug
  • INUI Tomohiko

Abstract

The relationship between the R&D and the productivity improvement in Japanese manufacturing firms is examined. Using more accurate and the more recent data on the individual firm's R&D activity rather than the data used in the previous research, we estimated a Cobb-Douglas production function, including R&D stock, for more than 3,000 Japanese firms for the period between 1995 and 1998. A positive and significant role is found on R&D expenditure and productivity, and the roles are different by the firms' sizes and characteristics of technology, although the rates of return on R&D stock are lower than those in the previous research. Our results indicate that the inter-firm differences are more important in explaining the differences in productivity growth than are the inter-industry differences. We also found that the effects of R&D on productivity improvement are larger for the large sized and high-tech firms than they are for the smaller sized and the low-tech firms.

Suggested Citation

  • KWON Hyeog Ug & INUI Tomohiko, 2003. "R&D and Productivity Growth in Japanese Manufacturing Firms," ESRI Discussion paper series 044, Economic and Social Research Institute (ESRI).
  • Handle: RePEc:esj:esridp:044
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    File URL: http://www.esri.go.jp/jp/archive/e_dis/e_dis044/e_dis044a.pdf
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    Cited by:

    1. Giuseppe Medda & Claudio Piga, 2014. "Technological spillovers and productivity in Italian manufacturing firms," Journal of Productivity Analysis, Springer, vol. 41(3), pages 419-434, June.
    2. Vu, Khuong & Hartley, Kris, 2022. "Sources of transport sector labor productivity performance in industrialized countries: Insights from a decomposition analysis," Transport Policy, Elsevier, vol. 129(C), pages 204-218.

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