<![CDATA[Abstract. This study accesses the causal relationship between trade openness, corruption and exchange rate in Nigeria between. Time series data was used from first quarter of 1996 to fourth quarter of 2021 on exchange rate, trade openness and corruption. Data was extracted from World Development Indicator (WDI) of World Bank database and International Transparency database. Trade openness was constructed using Composite Trade Intensity (CTI) measurement. Toda-Yamamoto approach was estimated to examine the causality among the trade openness, corruption and exchange rate. It was exhibited uni-directional causality between exchange rate and trade openness; exchange rate and corruption, unlike trade openness and corruption which revealed bi-directional causality. Thus, the result exhibited that exchange rate granger cause trade openness. It implies that an increase in exchange rate will causes the variation on trade openness in Nigeria. More so, the result revealed that exchange rate granger causes corruption. This also implies that exchange rate fluctuation leads to variation on corruption. In addition, it was found that there is bi-directional causal relationship between trade openness and corruption. This implies that trade openness granger causes corruption and corruption also granger cause trade openness. That is, an increases in trade openness in Nigeria causes any variation on corruption on Nigerian economy and vice-versa. Base result, the study recommended that the government should makes a policy for the improvement of trade openness that will enhance naira appreciation. More efforts should be made in checking and controlling corruption whenever there is improvement on trade openness in Nigeria. Key Words: Causality, Corruption, Exchange Rate, Toda-Yamamoto. JEL Code: C1, E5, F4.]]>
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