Inflation is a big problem in Nigeria, and the Central Bank has been trying to control it using monetary policy. A study looked at data from 1980 to 2019 and found that monetary policy doesn't really help control inflation in Nigeria, both in the short and long term. Money supply and exchange rate also don't have much impact on inflation. However, the Treasury bill rate does have a negative effect on inflation in the short term, but not in the long term. The study suggests that the government should focus on creating a good environment for monetary policies to attract investments and create jobs in Nigeria.