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Innovation sources and productivity in Catalonian firms: a quantile regression analysis

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  • Segarra Blasco, Agustí
  • Teruel Carrizosa, Mercedes

Abstract

This paper explores the effects of two main sources of innovation -intramural and external R&D- on the productivity level in a sample of 3,267 Catalonian firms. The data set used is based on the official innovation survey of Catalonia which was a part of the Spanish sample of CIS4, covering the years 2002-2004. We compare empirical results by applying usual OLS and quantile regression techniques both in manufacturing and services industries. In quantile regression, results suggest different patterns at both innovation sources as we move across conditional quantiles. The elasticity of intramural R&D activities on productivity decreased when we move up the high productivity levels both in manufacturing and services sectors, while the effects of external R&D rise in high-technology industries but are more ambiguous in low-technology and knowledge-intensive services. JEL codes: O300, C100, O140. Keywords: Innovation sources, R&D, Productivity, Quantile regression

Suggested Citation

  • Segarra Blasco, Agustí & Teruel Carrizosa, Mercedes, 2008. "Innovation sources and productivity in Catalonian firms: a quantile regression analysis," Working Papers 2072/9259, Universitat Rovira i Virgili, Department of Economics.
    • Handle: RePEc:urv:wpaper:2072/9259
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