Impact of carbon pricing on comparative advantage in environmental goods export in sub‐Saharan Africa: Evidence of asymmetries from South Africa

Chika A. Anisiuba, Hillary Chijindu Ezeaku, Samuel Manyo Takon, Maureen Ifeoma Iyke‐Ofoedu, Godwin Imo Ibe and Obiamaka P. Egbo

African Development Review, 2024, vol. 36, issue 2, 173-186

Abstract: This paper examines the asymmetric link between carbon pricing and the comparative advantage in environmental goods exports in South Africa from 1995 to 2021. The non‐linear autoregressive distributed lag model is utilized to investigate the effects of both minor and major positive and negative fluctuations in carbon taxes, technological innovation, and energy transition on comparative advantage. The results reveal that carbon taxes have an asymmetric effect on comparative advantage in both the short and long runs, with positive shocks exerting a greater beneficial influence than negative shocks. Specifically, it is found that a 1% reduction in carbon taxes corresponds to a 1.24% decline in the response variable, whereas a 1% increase in carbon taxes is associated with a 2.72% increase in comparative advantage in environmental goods exports, which is twice as large. The study also uncovers evidence of an asymmetric relationship between low‐carbon technological innovation and comparative advantage in environmental goods exports. However, strong evidence of a long‐run asymmetric linkage between the energy transition and comparative advantage is not established. Nevertheless, it is noteworthy that a positive shift in energy transition is linked with a 0.32% rise in comparative advantage in environmental goods exports, whereas a negative shift in energy transition corresponds to a 0.11% decrease. The practical policy implications are also discussed.

Date: 2024
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