Trade Policy and Economic Growth in Nigeria

Authors

  • Mutiu Adeniyi Afolabi Federal Polytechnic Offa

Keywords:

Trade Policy; Economic Growth; ARDL; IRF

Abstract

This study examines the effect of trade policy on Nigeria economic growth and used annual
data that spanned from 1983 to 2018. The Augmented Dickey-Fuller test revealed that the variables
employed have mixed order of integration (i(0),i(1)). Thereafter, An Autoregressive Distributed Lag
(ARDL) technique was employed because it suits the outcome of the pre estimation test. A cointegration
test among the variables is conducted using the ARDL bound test technique. The ARDL estimates show
that adjusted trade ratio impacted positively on GDP both in the short and long run and price based
variables impacted positively on GDP both in the short and long run. We computed impulse response
function for the estimated ARDL model to confirm the accuracy of Bound testing result. Interestingly,
the finding remained robust when the potential effect of the trade policy is accounted for using IRF.
The IRF show dynamically that GDP responded positively to trade policy at a higher horizon contrary
to the short run estimate thereby given more credibility to the result of the ARDL which was been
transformed to IRF. The dynamic responses allow us to find out that GDP responded positively and
negatively to trade policy but the accumulated (long run) effect is positive. The study conclude that
adjusted trade ratio is procyclical while price based mechanism is countercyclical in Nigeria during the
scope of study. The study suggests that the policy makers should adopt policies that can promote
innovations and shut out any form of black market premium that can cause distortions.

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Published

2022-05-20

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Section

Economic Development, Technological Change, and Growth