Asymmetric effects of oil price changes on the balance of trade: Evidence from selected African countries

Abstract

AbstractThe main new contribution of this study was to delve into the asymmetric impacts of changes in oil prices on the trade balance in the framework of six major African economies. To tackle this topic carefully, we employ three measures of external balances—oil, non‐oil and total trade balances, and assess the asymmetric response of the external balances of those six economies to oil price changes in the short and long run. Like most previous studies, we first assume the impacts of oil price fluctuations to be symmetric and employ the linear autoregressive distributed lag (ARDL) method to explore the topic. We then separate oil price hikes from oil price plunges and implement the non‐linear ARDL method to reveal that the price of crude oil has a vital role to play in the trade balances for those six African economies. Further, there is evidence of significant asymmetric impacts of oil prices typically on the oil trade balance of Africa's top oil producing countries. For the non‐oil and total trade balances, in contrast, there is little evidence of the asymmetry of oil price changes.