The Central Bank of Nigeria (CBN) has taken significant measures to curb inflation by raising its key interest rate, the Monetary Policy Rate (MPR), for the seventh consecutive time in the past year. The MPR has now reached a 22-year high of 18.75 percent. This move is likely to have various implications for Nigerians at all income levels.

The primary aim of this rate hike is to restore economic balance in response to the persistent increase in both food and core components of inflation. Challenges such as security issues in major food-producing areas, high transportation costs driven by rising energy prices, and inadequate public infrastructure continue to contribute to the inflation surge.

The rise in the MPR began earlier this year in January, when it was increased to 17.5 percent from 16.5 percent. Subsequently, it was raised again to 18 percent in March and further to 18.5 percent in May. This year alone, the rate has increased by a total of 225 basis points.

Raising interest rates is a measure taken to reduce inflation. It is aimed at making borrowing money more expensive, thus reducing the amount of money in circulation and eventually lowering prices. Commercial banks will align their lending rates to the MPR, affecting variable loans like credit card interest rates, and making borrowing costlier for consumers.

The rate hike will be most keenly felt by borrowers, particularly non-public non-financial corporations. These entities may struggle to pass on their rising costs to customers, putting an additional financial burden on them.

For individuals with existing loans, the increase in MPR means they will need to factor in the new interest rate to their repayments. Banks will notify borrowers of the changes, and if the loan is not fixed, the interest rate will be adjusted accordingly.

On the positive side, the rate hike will lead to improved interest rates on savings accounts, which are pegged at 30 percent of the MPR. This will benefit savers who can expect higher returns on their deposits.

Regarding the money market, the MPR has not significantly impacted fixed-income yields, mainly due to factors such as system liquidity, money supply, and the tenor of the instruments. Yields on T-bills, for instance, have not seen a substantial change despite the MPR increase.

Small and Medium-sized Enterprises (SMEs) that accessed loans at floating rates may experience higher finance costs, impacting their profitability.

Inflation remains the driving factor behind the rate hikes. Nigeria's inflation rate reached an 18-year high of 22.79 percent, primarily driven by increases in both food and core components of the Consumer Price Index (CPI). The MPC believes that previous rate hikes have moderately reduced the pace of inflation, leading to the recent decision to raise the MPR further.

Overall, the impact of the interest rate hike on Nigerians will be multifaceted, affecting borrowers, savers, SMEs, and the broader economy. The CBN's efforts to tackle inflation are crucial in maintaining economic stability and controlling the rising cost of living in the country.