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Is demand-pulled innovation equally important in different groups of firms?

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  • Mariacristina Piva
  • Marco Vivarelli

Abstract

Previous empirical literature - mainly cross-sectional - has tested the demand-pull hypothesis and found that overall, evidence does not conflict with the idea that innovation may be driven by output. Using a balanced panel of 216 Italian manufacturing firms over the 1995-2000 period, and checking for fixed effects, time, sectoral and size dummies and for the path-dependent nature of R&D, we also find a (barely significant) role of sales in inducing R&D expenditures. However, at the micro level, the demand-pull effect plays a varying role for the different sub-samples of firms. In particular, exporting firms, those which are liquidity-constrained, those not receiving public subsidies and those not heading a business group, seem to be particularly sensitive to sales in deciding their R&D expenditures. These microeconometric results have been obtained using a Least Squares Dummy Variable Corrected (LSDVC) estimator, a recently-proposed panel data technique particularly suitable for small samples.
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Suggested Citation

  • Mariacristina Piva & Marco Vivarelli, 2007. "Is demand-pulled innovation equally important in different groups of firms?," Cambridge Journal of Economics, Cambridge Political Economy Society, vol. 31(5), pages 691-710, September.
    • Handle: RePEc:oup:cambje:v:31:y:2007:i:5:p:691-710
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    File URL: http://hdl.handle.net/10.1093/cje/bem010
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    JEL classification:

    • O31 - Economic Development, Innovation, Technological Change, and Growth - - Innovation; Research and Development; Technological Change; Intellectual Property Rights - - - Innovation and Invention: Processes and Incentives

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