This study examines the factors influencing inflation stability in Nigeria from 2011Q1 to 2023Q1. We employ an ARDL model to assess the impact of monetary policy rate, money supply, crude oil price, GDP growth, and government budget deficit on inflation. Our findings reveal that broad money and fiscal deficit exert a positive and statistically significant influence on inflation in both the short and long run. Interestingly, monetary policy rate only affects inflation in the short term. These results suggest that Nigerian policymakers should prioritize managing broad money and fiscal deficits to achieve long-term inflation stability.

The sensitive nature of interest rate has spurred empirical interests on the factors that determine it. This paper examined the joint impact of exchange rate and foreign direct investment inflows on interest rate in Nigeria over the period from 1981-2022. The study made use of the auto regressive distributed lag (ARDL) bounds test and results of findings reveal that in both the short-run and the long-run the impact of the interaction between FDI inflows and exchange rate on real interest rate was negative and significant. Also, while credit to the private sector was found to have significant positive impact on real interest rate in both the time horizons, the impact of consumer price index was negative only in the short. Oil revenue was found to impact positively on real interest rate only in the long-run, but the impact of broad money supply was negative and significant in both the short-run and the long-run. The study suggests that policies to regulate domestic interest rate should focus on joint regulation of both exchange rate and FDI inflows and this requires a synergy between monetary and fiscal policies.