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The Path of R&D Efficiency over Time

Author Info

Listed author(s):
  • Pilar Beneito

    (University of Valencia and ERI-CES)

  • María Engracia Rochina-Barrachina

    (University of Valencia)

  • Amparo Sanchis

    (University of Valencia)

Abstract

In this paper we investigate the pattern of R&D efficiency in terms of the number of product innovations achieved by firms over time. Embodied in the R&D capital stock, we distinguish among physical R&D capital and human R&D capital, and allow the latter to be subject to dynamic returns along firms’ R&D histories. We assume that firms’ innovation outcomes depend on the length of the period of time they have been investing in R&D and explore whether the interruption in this temporal sequence of engagement in R&D affects the rate of achievement of innovation outcomes. For this purpose, we estimate an innovation production function using a panel dataset of Spanish manufacturing firms for the period 1990-2006. Our results suggest that R&D activities exhibit dynamic returns that are increasing but at a decreasing rate, possibly due to exhaustion of innovation opportunities. In addition, our findings indicate that interruptions of R&D activities reduce R&D efficiency, probably due to organizational forgetting. However, spillover effects seem to exist between firms’ R&D spells since firms resuming R&D activities achieve innovation success rates above the innovation rates of their initial years of R&D activities.

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File URL: ftp://147.156.210.157/RePEc/pdf/eec_1403.pdf
File Function: First version, 2014
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Paper provided by Department of Applied Economics II, Universidad de Valencia in its series Working Papers with number 1403.

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Length: 42 pages
Date of creation: Apr 2014
Handle: RePEc:eec:wpaper:1403
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Keywords: R&D; dynamic returns; interruptions; product innovation; count data;

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Find related papers by JEL classification:
  • C1 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods and Methodology: General
  • L2 - Industrial Organization - - Firm Objectives, Organization, and Behavior
  • O3 - Economic Development, Innovation, Technological Change, and Growth - - Innovation; Research and Development; Technological Change; Intellectual Property Rights

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  1. Beneito, Pilar, 2006. "The innovative performance of in-house and contracted R&D in terms of patents and utility models," Research Policy, Elsevier, vol. 35(4), pages 502-517, May.
  2. Czarnitzki, Dirk & Kraft, Kornelius & Thorwarth, Susanne, 2009. "The knowledge production of 'R' and 'D'," Economics Letters, Elsevier, vol. 105(1), pages 141-143, October.
  3. Philippe Aghion & Nick Bloom & Richard Blundell & Rachel Griffith & Peter Howitt, 2005. "Competition and Innovation: an Inverted-U Relationship," The Quarterly Journal of Economics, Oxford University Press, vol. 120(2), pages 701-728.
  4. Cameron,A. Colin & Trivedi,Pravin K., 2013. "Regression Analysis of Count Data," Cambridge Books, Cambridge University Press, number 9781107667273, December.
  5. De Loecker, Jan, 2010. "A Note on Detecting Learning by Exporting," CEPR Discussion Papers 8121, C.E.P.R. Discussion Papers.
  6. Bronwyn H. Hall & Zvi Griliches & Jerry A. Hausman, 1984. "Patents and R&D: Is There A Lag?," NBER Working Papers 1454, National Bureau of Economic Research, Inc.
  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. 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.
  9. Ulrich Doraszelski & Jordi Jaumandreu, 2013. "R&D and Productivity: Estimating Endogenous Productivity," Review of Economic Studies, Oxford University Press, vol. 80(4), pages 1338-1383.
  10. C. Lanier Benkard, 2000. "Learning and Forgetting: The Dynamics of Aircraft Production," American Economic Review, American Economic Association, vol. 90(4), pages 1034-1054, September.
  11. Douglas Staiger & James H. Stock, 1997. "Instrumental Variables Regression with Weak Instruments," Econometrica, Econometric Society, vol. 65(3), pages 557-586, May.
  12. Jürgen Bitzer, 2005. "Measuring Knowledge Stocks: A Process of Creative Destruction," Kyklos, Wiley Blackwell, vol. 58(3), pages 379-393, 07.
  13. James Levinsohn & Amil Petrin, 2003. "Estimating Production Functions Using Inputs to Control for Unobservables," Review of Economic Studies, Oxford University Press, vol. 70(2), pages 317-341.
  14. Schankerman, Mark, 1981. "The Effects of Double-Counting and Expensing on the Measured Returns to R&D," The Review of Economics and Statistics, MIT Press, vol. 63(3), pages 454-458, August.
  15. Bronwyn H. Hall, 2010. "Measuring the Returns to R&D: The Depreciation Problem," NBER Chapters,in: Contributions in Memory of Zvi Griliches, pages 341-381 National Bureau of Economic Research, Inc.
  16. Guy David & Tanguy Brachet, 2011. "On the Determinants of Organizational Forgetting," American Economic Journal: Microeconomics, American Economic Association, vol. 3(3), pages 100-123, August.
  17. Wooldridge, Jeffrey M., 1997. "Multiplicative Panel Data Models Without the Strict Exogeneity Assumption," Econometric Theory, Cambridge University Press, vol. 13(05), pages 667-678, October.
  18. Dasgupta, Partha & Stiglitz, Joseph E, 1988. "Learning-by-Doing, Market Structure and Industrial and Trade Policies," Oxford Economic Papers, Oxford University Press, vol. 40(2), pages 246-268, June.
  19. Blundell, Richard & Griffith, Rachel & Windmeijer, Frank, 2002. "Individual effects and dynamics in count data models," Journal of Econometrics, Elsevier, vol. 108(1), pages 113-131, May.
  20. Paula Bustos, 2011. "Trade Liberalization, Exports, and Technology Upgrading: Evidence on the Impact of MERCOSUR on Argentinian Firms," American Economic Review, American Economic Association, vol. 101(1), pages 304-340, February.
  21. Zvi Griliches, 1958. "Research Costs and Social Returns: Hybrid Corn and Related Innovations," Journal of Political Economy, University of Chicago Press, vol. 66, pages 419-419.
  22. David Besanko & Ulrich Doraszelski & Yaroslav Kryukov & Mark Satterthwaite, 2010. "Learning-by-Doing, Organizational Forgetting, and Industry Dynamics," Econometrica, Econometric Society, vol. 78(2), pages 453-508, 03.
  23. Sherwin Rosen, 1972. "Learning by Experience as Joint Production," The Quarterly Journal of Economics, Oxford University Press, vol. 86(3), pages 366-382.
  24. C. Lanier Benkard, 2004. "A Dynamic Analysis of the Market for Wide-Bodied Commercial Aircraft," Review of Economic Studies, Oxford University Press, vol. 71(3), pages 581-611.
  25. Heckman, James, 2013. "Sample selection bias as a specification error," Applied Econometrics, Publishing House "SINERGIA PRESS", vol. 31(3), pages 129-137.
  26. Richard Blundell & Rachel Griffith & John van Reenen, 1999. "Market Share, Market Value and Innovation in a Panel of British Manufacturing Firms," Review of Economic Studies, Oxford University Press, vol. 66(3), pages 529-554.
  27. Leff, Nathaniel H, 1978. "Industrial Organization and Entrepreneurship in the Developing Countries: The Economic Groups," Economic Development and Cultural Change, University of Chicago Press, vol. 26(4), pages 661-675, July.
  28. Ariel Pakes & Mark Schankerman, 1984. "The Rate of Obsolescence of Patents, Research Gestation Lags, and the Private Rate of Return to Research Resources," NBER Chapters,in: R&D, Patents, and Productivity, pages 73-88 National Bureau of Economic Research, Inc.
  29. Kenneth J. Arrow, 1962. "The Economic Implications of Learning by Doing," Review of Economic Studies, Oxford University Press, vol. 29(3), pages 155-173.
  30. Silviano Pérez & Amparo Llopis & Juan Llopis, 2004. "The Determinants of Survival of Spanish Manufacturing Firms," Review of Industrial Organization, Springer;The Industrial Organization Society, vol. 25(3), pages 251-273, 08.
  31. Hulten, Charles R & Wykoff, Frank C, 1996. "Issues in the Measurement of Economic Depreciation: Introductory Remarks," Economic Inquiry, Western Economic Association International, vol. 34(1), pages 10-23, January.
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Cited by:

  1. P. Beneito & M. E. Rochina-Barrachina & A. Sanchis, 2016. "Foreign capital, credit constraints and continuity of firms' R&D," Applied Economics Letters, Taylor & Francis Journals, vol. 23(3), pages 157-161, February.

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