Abstract
We investigate the degree of interconnectedness between stock returns and exchange rate returns, and the influence of some selected global uncertainty indices on such a relationship within a time-frequency domain in West Africa through the bi and partial wavelet approaches. The analysis was based on monthly observations from February 2013 to June 2023. The results highlight a negative correlation between stock return and exchange rates. The partial wavelet analysis evidence a significant effect of the global economic policy uncertainty, the implied oil market volatility, and the United States volatility index in driving the co-movements observed in the currency and stock markets. We also find a significant impact of the stock market on the currency market, underscoring the need for robust stock market policies. It is recommended that policymakers prioritize strategies aimed at boosting stock market stability and depth which can positively affect the currency markets. The significant influence of global uncertainties or shocks should not be disregarded in the formulation of policies regarding exchange rates and stock return integration at various investment horizons.
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