Effect of changing business R&D expenditure mix on productivity of the South African national system of innovation

Juniours Marire ()

African Journal of Science, Technology, Innovation and Development, 2022, vol. 14, issue 4, 1071-1082

Abstract: The paper examines the effect of the sharp reallocation of business R&D expenditure from experimental research to applied research, since the global financial crisis, on the productivity of the South African national system of innovation (NSI). Business R&D expenditure declined sharply, without reversal, which suggests structural change. The paper applies linear regression models to data on trademarks and patents obtained from the World Intellectual Property Office and business R&D expenditure obtained from the Human Sciences Research Council, South Africa, for the period 2004–2018. The paper finds that reallocation of R&D expenditure from experimental to applied research had detrimental effects on the productivity of the NSI. Counterfactually, reallocation of R&D spending from experimental research to basic research had positive effects on innovation performance. The paper also establishes structural change in the innovation-business R&D spending regime. Policymakers, through tax incentives and nudging, should incentivise reallocation of business R&D spending towards basic research, while adjusting downwards the allocation to experimental and applied research until they reach their optimal levels. Discovery of structural change in the innovation-business R&D expenditure regime, the identification of sub-optimality in business R&D spending allocation, and identifying distorted incentive structures, all bring new knowledge to scholarship on the national system of innovation.

Date: 2022
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DOI: 10.1080/20421338.2021.1935424

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