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Glossary

Monetary Policy

Monetary policy is the set of actions a central bank takes to manage money supply, credit conditions, and interest rates in order to pursue goals such as stable prices and employment.

What Is Monetary Policy?

Monetary policy is the toolkit a central bank uses to influence the overall level of economic activity. By changing the cost and availability of money and credit, a central bank aims to keep inflation under control, support jobs and growth, and maintain stability in the financial system. Most central banks have a mandate that centers on some combination of these goals, though the exact wording differs from country to country.

How It Works

The main channel is the policy interest rate, the rate that a central bank targets for short-term lending between banks. When the central bank raises this rate, borrowing becomes more expensive throughout the economy, which tends to slow spending and cool price increases. When it lowers the rate, borrowing gets cheaper, which can encourage businesses to invest and households to spend. Central banks also use open market operations, buying or selling government securities to adjust the amount of reserves in the banking system, and they may use communication about future plans to shape expectations.

Changes in rates typically flow through to bond yields, mortgage rates, and the prices of stocks and other assets. Because these effects take time to appear, central banks often act well before the full impact is visible in the data.

Why It Matters to Investors

Monetary policy shapes the environment in which all investments operate. Higher rates can make fixed-income investments more attractive relative to stocks and can raise the discount rate used to value future company earnings. Lower rates often have the opposite effect. Investors watch central bank meetings, official statements, and economic data closely for signals about the likely direction of policy.

Monetary policy is different from fiscal policy, which is set by governments through spending and taxation. Both can affect markets, but they operate through different institutions and tools.

Updated October 15, 2026. For general education only; not financial, tax or legal advice.

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Related Terms

Bond Yield

A bond yield is the annual return an investor earns from holding a bond, expressed as a percentage of its price, reflecting coupon income and any gain or loss relative to the amount paid.

Mortgage Rate

A mortgage rate is the interest rate charged on a home loan, which determines the cost of borrowing the money used to buy property, expressed as a percentage of the outstanding loan balance.

Fiscal Policy

Fiscal policy is the government's use of spending and taxation to influence a country's economy, including total demand, growth, employment, and inflation.

Federal Funds Rate

The federal funds rate is the target interest rate for overnight loans of reserve balances between U.S. banks, set by the Federal Reserve's policy committee.

Inflation

Inflation is the sustained rise in the general price level of goods and services over time, which reduces how much money can buy.

Quantitative Easing (QE)

Quantitative easing is a central bank policy in which the bank buys large amounts of government bonds and other securities to inject money into the financial system and lower long-term interest rates.

Yield Curve

A yield curve is a graph that plots the interest rates, or yields, of bonds with the same credit quality but different maturities, showing how borrowing costs change with time.

Interest Rate Risk

Interest rate risk is the chance that changes in market interest rates will reduce the value of an investment, most often bonds and other fixed-income securities.