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STI Working Papers SeriesThis Working Papers series of the OECD Directorate for Science, Technology and Industry of the OECD is designed to make available to a wider readership selected studies prepared by staff in the Directorate or by outside consultants working on OECD projects. The papers included in the series are of a technical and analytical nature and deal with issues of data, methodology and empirical analysis in the areas of work of DSTI. The Working Papers are generally available only in their original language -English or Frenchwith a summary in the other.Comment on the papers is invited, and should be sent to Directorate for Science, Technology and Industry, OECD, 2 rue André Pascal, 75775 Paris Cedex 16, France.The opinions expressed in these papers are the sole responsibility of the author(s) and do not necessarily reflect those of the OECD or of the governments of its Member countries.
Copyright OECD, 1996Applications for permission to reproduce or translate all or part of this material should be made to: Head of Publications Service, OECD, 2 rue André Pascal, 75775 Paris, Cedex 16, France.
3The Impact of R&D and Technology Diffusion on Productivity Growth: Evidence for 10 OECD Countries in the 1970s and 1980sNorihisa Sakurai*, Evangelos Ioannidis**, George Papaconstantinou** This paper examines the empirical evidence on the impact of performed R&D and of embodied R&D on productivity performance in 10 major OECD countries (the G7 countries, Australia, Denmark and the Netherlands) over the last two decades. Industry-level performed R&D and embodied R&D variables were constructed from an input-output model developed in a previous paper on technology diffusion. The productivity variables used in this paper are Divisia growth indexes of TFP which were consistently estimated by an input-output based growth accounting procedure. The aggregate TFP estimates showed some recovery in the 1980s in most countries and notably in the United States, where most of this recovery was in manufacturing. The results from pooled regressions across countries and across industries during the 1970s and 1980s indicate that the rates of return of both R&D variables are positively significant and increasing in the 1980s. The estimated rate of return of direct R&D for manufacturing is about 15% on average across the countries and no significant difference is observed between the two decades. However, the rate of rerun of direct R&D varies across the countries: in the 1970s Japan showed the highest return (40%) but in the 1980s it was highest in Italy (50%) and Canada (30%). On the other hand, embodied R&D is an important source for productivity growth in services, pointing to very high social returns of the flows of capital-embodied technology into this sector: on average across the countries it was about 130% in the 1970s and 190% in the 1980s. The Information and Communication Technology (ICT) cl...