Monetary Policy

Monetary policy is how a central bank manages inflation and economic activity by setting interest rates and adjusting the amount of money circulating. Most central banks put price stability first, followed by employment and financial stability.

The primary tool is the policy rate. When inflation runs hot, raising rates makes borrowing expensive and cools spending and investment. When the economy sags, cutting rates puts money back in motion. When rates cannot go lower, central banks buy bonds in bulk through quantitative easing, and they drain that liquidity again through quantitative tightening.

It differs from fiscal policy, where a government uses taxes and spending, in both who acts and how fast. Fiscal measures require legislative debate and a budget process, while a monetary decision is made in a central bank meeting and announced immediately. In exchange, the effects take several quarters to reach the real economy, so central banks decide with an eye on a year ahead rather than today.

That makes monetary policy a perpetual balancing act. Tighten too late and inflation runs away; tighten too hard and you break growth and raise unemployment. Markets react more to the tone of the governor's remarks and the forward outlook than to the decision itself, because an expected decision is already in prices and the real information lies in where policy is heading.