Inflation is the continuous rise in prices over time. If inflation increases excessively, money becomes less valuable, negatively affecting the purchasing power of individuals and businesses. This is where the role of the interest rate comes into play. When inflation rises, the central bank raises the interest rate, making borrowing more expensive and reducing consumer spending. Consequently, the overall demand for goods and services decreases, helping to reduce inflation.

Conversely, if inflation is too low or the economy is facing a recession, the central bank can lower the interest rate. This encourages borrowing and spending, supporting economic activity and raising inflation to the target level.

Practical Examples: During the 2008 global financial crisis, many central banks lowered interest rates to near zero levels to support the struggling economy. In another example, in the 1990s, the U.S. Federal Reserve used successive interest rate hikes to control rising inflation, helping stabilize the economy.

Conclusion: Interest rates are a powerful tool through which the economy can be guided toward stability. By carefully adjusting interest rates, central banks can control inflation, encourage economic growth, and ensure the long-term sustainability of the economy.