This study queries the oil price-exchange rate linkage in Nigeria deploying data at daily frequency spanning January 2, 2009 to September 28, 2010. Two volatility models – the generalised autoregressive conditional heteroscedasticity (GARCH) and exponential GARCH (EGARCH) – were deployed to...

We explore the possible causal effect of economic policy uncertainty on the connectedness of crude oil and currency markets using a sample of commodity currencies from advanced and emerging nations. A battery of linear and nonlinear Granger-based causality tests indicate the presence of a causal...