How Central Banks, Money Supply and Interest Rates Affect the Naira

This explainer examines how central banks influence an economy through money supply, interest rates and banking regulation. It uses Nigeria’s recent exchange-rate debates to show why changes in the amount of money in circulation can affect inflation and the value of the naira. It argues that rapid growth in money supply can weaken a currency, raise the naira cost of foreign exchange and reduce the purchasing power of savings. It also discusses the pressure this can place on commercial banks, depositors and borrowers. For individuals, the discussion recommends reducing exposure to idle cash and understanding how inflation affects savings, assets and business decisions. Currency values, however, are also shaped by factors such as foreign-exchange supply, imports, exports, investor confidence, interest rates and government policy.

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