Knowledge spillovers and R&D subsidies to new, emerging technologies

Tom-Reiel Heggedal

Economics of Innovation and New Technology, 2015, vol. 24, issue 7, 710-733

Abstract: Is knowledge spillover a rationale for supporting R&D on new, emerging technologies more than R&D on other technologies? In this paper, I analyze whether innovation externalities caused only by knowledge spillovers differ between technologies of different maturity. I show that R&D should not be subsidized equally across industries when the knowledge stocks differ. This is because knowledge spillovers depend on the size of the knowledge stock and the elasticity of scale in R&D production. R&D in the emerging technology should be subsidized more when the elasticity is smaller than one. However, R&D in the mature technology should be subsidized more when the elasticity is larger than one.

Date: 2015
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DOI: 10.1080/10438599.2014.983691

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