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A: The three main tools of monetary policy used by the Federal Reserve are open-market operations, the discount rate and the reserve requirements. Through the use of these three tools, the Fed can manipulate market movements to exercise control over the economy.
Monetary policy, at its most basic, is the change in money supply in an economy in order to achieve various macroeconomic objectives. Monetary policy can be expansionary (increase AD) or contractionary (reduce AD) in nature.