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R&D intensity and carbon emissions in the G7: 1870–2014

Sefa Awaworyi Churchill, John Inekwe (), Russell Smyth () and Xibin Zhang

Energy Economics, 2019, vol. 80, issue C, 30-37

Abstract: We examine the effect of research and development (R&D) intensity on carbon dioxide (CO2) emissions in the Group of Seven (G7) countries since the nineteenth century using a non-parametric panel data model. Our estimates suggest that the relationship between R&D and CO2 emissions is time-varying. The estimated time-varying coefficient function of R&D was negative for three quarters of the period studied, but was positive for a 35-year period (1955–1990) during the second half of the twentieth century. Our non-parametric local linear estimates show that the common trend functions gradually increased for the first 110 years (1870–1980), but then flattened out and showed a slight decrease for the next three decades.

Keywords: Carbon emissions; CO2; Non-parametric model; Research and development (search for similar items in EconPapers)
JEL-codes: C33 Q53 Q55 O3 (search for similar items in EconPapers)
Date: 2019
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DOI: 10.1016/j.eneco.2018.12.020

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