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Innovation, Public Capital, and Growth

Pierre-Richard Agénor () and Kyriakos Neanidis ()

Centre for Growth and Business Cycle Research Discussion Paper Series from Economics, The University of Manchester

Abstract: This paper studies interactions between innovation, public capital, and human capital in an OLG model of endogenous growth. Public capital affects growth through productivity, the diffusion rate of new technologies, innovation capacity, and human capital accumulation. Panel data regressions show that higher innovation performance promotes growth directly, whereas public capital (through quantity and quality effects) has both direct and indirect effects on growth by promoting human capital accumulation and raising innovation capacity. The direct growth effect operates in a nonlinear fashion, in line with "critical mass" models of infrastructure. Elasticity estimates derived from simultaneous equation techniques show that the general equilibrium effects of public capital on steady-state output per capita (which account for indirect effects though human capital and innovation) are significantly higher than those derived from single equation methods.

Pages: 55 pages
Date: 2010
New Economics Papers: this item is included in nep-dge, nep-fdg, nep-ino and nep-pbe
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Journal Article: Innovation, public capital, and growth (2015) Downloads
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