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R&D and Non-Linear Productivity Growth of Heterogeneous Firms

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Abstract

The present paper studies the relationship between R&D investment and firm productivity growth by explicitly accounting for non-linearities in the R&D-productivity relationship and inter-sectoral firm heterogeneity. In order to address these issues, we employ a two step estimation approach, and match two firm-level panel data sets for the OECD countries, which allows us to relax both the linearity and homogeneity assumptions of the canonical Griliches (1979) knowledge capital model. Our results suggest that: (i) R&D investment increases firm productivity with an average elasticity of 0.15; (ii) the impact of R&D investment on firm productivity is differential at different levels of R&D intensity – the productivity elasticity ranges from -0.02 for low levels of R&D intensity to 0.33 for high levels of R&D intensity; (iii) the relationship between R&D expenditures and productivity growth is non-linear, and only after a certain critical mass of R&D is reached, the productivity growth is significantly positive; (iv) there are important intersectoral differences with respect to R&D investment and firm productivity – high-tech sectors’ firms not only invest more in R&D, but also achieve more in terms of productivity gains connected with research activities.

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File URL: http://iri.jrc.ec.europa.eu/docs/papers/2012/WP_6-2012.pdf
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Bibliographic Info

Paper provided by Institute for Prospective and Technological Studies, Joint Research Centre in its series JRC-IPTS Working Papers with number JRC77247.

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Length: 33 pages
Date of creation: Dec 2012
Date of revision: Dec 2012
Handle: RePEc:ipt:iptwpa:jrc77247

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Keywords: R&D investment; firm productivity; generalised propensity score;

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  20. Thorwarth, Susanne & Kraft, Kornelius & Czarnitzki, Dirk, 2008. "The Knowledge Production of 'R' and 'D'," ZEW Discussion Papers 08-046, ZEW - Zentrum für Europäische Wirtschaftsforschung / Center for European Economic Research.
  21. Markus Eberhardt & Christian Helmers, 2010. "Untested Assumptions and Data Slicing: A Critical Review of Firm-Level Production Function Estimators," Economics Series Working Papers 513, University of Oxford, Department of Economics.
  22. Blouin, Arthur & Ghosal, Sayantan & Mukand, Sharun, 2011. "Globalization and the (Mis)Governance of Nations," CAGE Online Working Paper Series 69, Competitive Advantage in the Global Economy (CAGE).
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