Does Exchange Rate Volatility Affect Economic Growth in Nigeria?

Moses Tule, Oboh Ugbem Victor, Godday Ebuh, Onipede Samuel Fumilade and Gbadebo Nathaniel

International Journal of Economics and Finance, 2020, vol. 12, issue 7, 54

Abstract: This study used monthly data from 2003 to 2017 to analyze the effects of USD/NG₦ exchange-rate volatility on Nigeria’s economic growth. The results from generalized autoregressive conditional heteroscedasticity (GARCH) and vector error correction model (VECM) analyses indicated that USD/NG₦ volatility had a significant effect on the country’s gross domestic product (GDP) growth. The results of the Granger causality/block exogeneity Wald tests and impulse-response functions also indicated that USD/NG₦ volatility had a significant negative effect on the country’s GDP growth. Moreover, USD/NG₦ exchange-rate volatility was found to exhibit short-term unidirectional causality for economic growth. However, a bidirectional relationship was confirmed between narrow money supply and economic growth. Yet, it was also found that the interbank exchange rate, which is a semiofficial Forex window, had little effect on Nigeria’s economic growth—a strong indication that a large portion of the productive sector lacks access to this Forex platform.

Date: 2020
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