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Appropriation Of Returns From Technological Assets And The Values Of Patents And R&D In Japanese High-Tech Firms


  • Shoko Haneda
  • Hiroyuki Odagiri


This paper investigates the extent that technological assets contribute to the value of the firm, using the sample of 90 Japanese firms in pharmaceutical, chemical, and electrical equipment industries. We use the firm's R&D expenditures and the number of patents (in stock) as the measures of its technological assets and show that the relative usefulness of these two measures varies across industries. Particularly, Tobin's q is positively related to the technological assets most strongly in the pharmaceutical industry. It is also most sensitive in this industry to the level of patent stock, coinciding with the view that drug patents are more effective than other patents as a means of appropriating returns from innovation. The communications equipment industry is also characterized by its q's dependence on patent stock. In addition, this industry's q is particularly sensitive to the level of net R&D investment in the most recent year, presumably because of the rapid technological progress in this industry.

Suggested Citation

  • Shoko Haneda & Hiroyuki Odagiri, 1998. "Appropriation Of Returns From Technological Assets And The Values Of Patents And R&D In Japanese High-Tech Firms," Economics of Innovation and New Technology, Taylor & Francis Journals, vol. 7(4), pages 303-321.
  • Handle: RePEc:taf:ecinnt:v:7:y:1998:i:4:p:303-321 DOI: 10.1080/10438599800000038

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    References listed on IDEAS

    1. Zvi Griliches & Jacques Mairesse, 1995. "Production Functions: The Search for Identification," NBER Working Papers 5067, National Bureau of Economic Research, Inc.
    2. Crepon, B. & Duguet, E. & Kabla, I., 1995. "A Moderate Support to Schumpeterian Conjectures from Various Innovation Measures," Papiers d'Economie Mathématique et Applications 95.06, Université Panthéon-Sorbonne (Paris 1).
    3. Cohen, Wesley M & Klepper, Steven, 1996. "A Reprise of Size and R&D," Economic Journal, Royal Economic Society, vol. 106(437), pages 925-951, July.
    4. Chamberlain, Gary, 1982. "Multivariate regression models for panel data," Journal of Econometrics, Elsevier, vol. 18(1), pages 5-46, January.
    5. Jacques Mairesse & Philippe Cunéo, 1985. "Recherche-développement et performances des entreprises : une étude économétrique sur données individuelles," Revue Économique, Programme National Persée, vol. 36(5), pages 1001-1042.
    6. Hall, Bronwyn H. & Mairesse, Jacques, 1995. "Exploring the relationship between R&D and productivity in French manufacturing firms," Journal of Econometrics, Elsevier, vol. 65(1), pages 263-293, January.
    7. Hausman, Jerry & Hall, Bronwyn H & Griliches, Zvi, 1984. "Econometric Models for Count Data with an Application to the Patents-R&D Relationship," Econometrica, Econometric Society, vol. 52(4), pages 909-938, July.
    8. Heckman, James, 2013. "Sample selection bias as a specification error," Applied Econometrics, Publishing House "SINERGIA PRESS", vol. 31(3), pages 129-137.
    9. repec:crs:wpaper:9730 is not listed on IDEAS
    10. Crepon, Bruno & Duguet, Emmanuel, 1997. "Estimating the Innovation Function from Patent Numbers: GMM on Count Panel Data," Journal of Applied Econometrics, John Wiley & Sons, Ltd., vol. 12(3), pages 243-263, May-June.
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    Cited by:

    1. Banri ITO & Tatsufumi YAMAGATA, 2007. "Who Develops Innovations In Medicine For The Poor? Trends In Patent Applications Related To Medicines For Hiv/Aids, Tuberculosis, Malaria, And Neglected Diseases," The Developing Economies, Institute of Developing Economies, vol. 45(2), pages 141-171.
    2. Jörg Mahlich, 2010. "Patents and performance in the Japanese pharmaceutical industry: An institution-based view," Asia Pacific Journal of Management, Springer, vol. 27(1), pages 99-113, March.
    3. Iwasa, Tomoko & Odagiri, Hiroyuki, 2004. "Overseas R&D, knowledge sourcing, and patenting: an empirical study of Japanese R&D investment in the US," Research Policy, Elsevier, vol. 33(5), pages 807-828, July.
    4. Hashimoto, Akihiro & Haneda, Shoko, 2008. "Measuring the change in R&D efficiency of the Japanese pharmaceutical industry," Research Policy, Elsevier, vol. 37(10), pages 1829-1836, December.
    5. Federico Munari & Raffaele Oriani (ed.), 2011. "The Economic Valuation of Patents," Books, Edward Elgar Publishing, number 13561.
    6. Serena Morricone & Raffaele Oriani, 2011. "Stock Market Valuation of Patent Portfolios," Chapters,in: The Economic Valuation of Patents, chapter 13 Edward Elgar Publishing.

    More about this item


    Patents; R&D stock; Tobin's q; JEL Classification: O32; O34; G12;

    JEL classification:

    • O32 - Economic Development, Innovation, Technological Change, and Growth - - Innovation; Research and Development; Technological Change; Intellectual Property Rights - - - Management of Technological Innovation and R&D
    • O34 - Economic Development, Innovation, Technological Change, and Growth - - Innovation; Research and Development; Technological Change; Intellectual Property Rights - - - Intellectual Property and Intellectual Capital
    • G12 - Financial Economics - - General Financial Markets - - - Asset Pricing; Trading Volume; Bond Interest Rates


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