The asymmetric effect of trade openness on economic growth in South Africa: a nonlinear ARDL approach

Maxwell Chukwudi Udeagha () and Nicholas Ngepah
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Maxwell Chukwudi Udeagha: University of Johannesburg

Economic Change and Restructuring, 2021, vol. 54, issue 2, No 7, 540 pages

Abstract: Abstract The untested hypothesis of a linear association between trade openness and economic growth in earlier studies may bring about incorrect inferences if indeed the association is nonlinear. This study uses the newly developed nonlinear autoregressive distributed lags (NARDL) framework to re-examine the link between trade openness and economic growth in South Africa over the period 1960–2016, highlighting the asymmetric effects of trade openness using an innovative proxy of trade openness proposed by Squalli and Wilson (World Econ 34(10):1745–1770, 2011). In contrast to previous studies, the new proxy is constructed to take into consideration both South Africa’s trade share of its GDP and its relative size of trade in relation to world trade in a specified period. Adopting this novel approach to capture openness permits the simultaneous testing of short- and long-run nonlinearities through positive and negative partial sum decompositions of trade openness. It also enables us to quantify the short- and long-run impacts of trade openness increases and decreases on economic growth from asymmetric dynamic multipliers. The results show that trade openness has short- and long-run asymmetric effects on economic growth. These results have important policy implications.

Keywords: International trade; Nonlinear ARDL; Trade openness; Economic growth; Symmetric ARDL; Asymmetry cointegration; South Africa (search for similar items in EconPapers)
JEL-codes: F13 F14 F41 F43 F60 (search for similar items in EconPapers)
Date: 2021
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Citations: View citations in EconPapers (20)

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DOI: 10.1007/s10644-020-09285-6

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