Tight monetary policy is a means of regulating the economy used by central banks such as the Federal Reserve. It is a tool often employed to cool off periods of high economic growth and fast-rising inflation. Central banks typically engage in tight monetary policy when an economy is showing signs of overheating and inflation has been running persistently high above the central bank’s target rate.

A tight monetary policy aims to restrain inflation, slow economic growth and stabilize the financial system by reducing the amount of money available for borrowing. The main tool used by central banks to implement tight monetary policy is by raising the federal funds rate—the rate at which banks lend to each other. By increasing this rate, borrowing rates usually rise, making loans and other forms of credit more expensive and reducing the amount of money available for lending.

Tight monetary policy is the opposite of expansionary monetary policy which is used to stimulate economic growth by lowering borrowing rates and making credit more affordable. When central banks raise borrowing and lending rates, households and businesses are less likely to take on debt and instead are more likely to save, which can reduce consumption and investment. This can lead to fewer jobs and greater spending restraint.

Tight monetary policy can reduce inflation and gradually bring the economy to a more stable level of growth. Eventually, the central bank may reverse its monetary policy and lower rates, restoring economic activity and allowing borrowing to resume.

Ultimately, the goal of tight monetary policy is to maintain economic stability and support long-term economic growth by suppressing periods of inflation and overheated economic expansion. During times of economic uncertainty, central banks may need to adjust their policies to ensure that the economy and financial markets remain in check.