The Federal Reserve

Quick Answer

The Federal Reserve is America's central bank. It runs monetary policy to control the money supply and interest rates. Its main tools are open market operations (buying or selling securities), reserve requirements, and setting key rates. Buying securities eases policy and lowers rates; selling tightens policy and raises them.

The Federal Reserve is the starting point for understanding economic factors because its decisions on monetary policy set off chain reactions across every financial market.


The Federal Reserve: America's Central Bank

  • The Federal Reserve (the Fed) is the central bank of the United States
  • Its mandate (set by Congress) has three goals:
    • Maximum employment
    • Stable prices (controlling inflation)
    • Moderate long-term interest rates
  • You will often hear this called the Fed's dual mandate (maximum employment and stable prices). Moderate long-term interest rates is the third goal written into the law and tends to follow from stable prices, so for the exam all three count as Fed goals
  • The Fed achieves these goals through monetary policy: controlling the money supply and interest rates

Monetary Policy vs. Fiscal Policy

This is one of the most commonly tested distinctions on the SIE. Both affect the economy, but they come from different places and use different tools.

FeatureMonetary PolicyFiscal Policy
Controlled byThe Federal ReserveCongress and the President
ToolsInterest rates, open market operations, reserve requirementsGovernment spending and taxation
GoalPrice stability, employment, moderate interest ratesEconomic growth, public services, deficit management
SpeedFaster; the Fed can act quicklySlower; requires the legislative process

Exam Tip: Gotchas

  • Monetary policy = the Fed. Fiscal policy = Congress. If the question mentions tax changes or government spending, it is fiscal policy, even if the economic effect sounds similar to monetary policy.

Federal Reserve Tools

The Fed has three primary tools to influence the economy. Think of them as levers that either inject money into the economy (expansionary/easing) or pull money out (contractionary/tightening).

1. Open Market Operations (Most Frequently Used)

  • Conducted by the Federal Open Market Committee (FOMC)
  • The Fed buys or sells securities (typically Treasury bonds) in the open market
ActionEffect on Money SupplyPolicy Type
Buying securitiesInjects money into the economy (bank reserves increase)Expansionary (easing)
Selling securitiesPulls money out of the economy (bank reserves decrease)Contractionary (tightening)
  • This is the Fed's most commonly used and most flexible tool
  • When the Fed buys bonds, it pays cash to sellers, increasing reserves in the banking system
  • When the Fed sells bonds, it absorbs cash from buyers, reducing reserves
  • Which way, and when? In a recession or when inflation is low, demand is weak and unemployment tends to rise, so the Fed eases: it buys securities in the open market to push interest rates down and stimulate spending. When demand is too strong and inflation is rising, it tightens by selling securities to push rates up

Think of it this way: When the Fed buys bonds, it is pumping cash into the economy like turning on a faucet. When it sells bonds, it is draining cash out. More cash in circulation means lower interest rates; less cash means higher rates.

Quantitative easing and quantitative tightening are the large-scale versions of open market operations:

  • Quantitative easing (QE) is the Fed buying large quantities of securities to inject money into the economy (expansionary)
  • Quantitative tightening (QT) is the Fed letting securities run off its balance sheet or selling them to pull money out (contractionary)

Exam Tip: Gotchas

  • QE and QT are not government spending. Government spending is a fiscal policy tool controlled by Congress. QE and QT are the Fed buying or selling securities with its own balance sheet, so they fall under open market operations, a monetary policy tool.

2. Reserve Requirements

  • The percentage of customer deposits that banks must hold in reserve (not lend out)
  • Raising the reserve requirement = contractionary (banks can lend less)
  • Lowering the reserve requirement = expansionary (banks can lend more)
  • This tool is used less frequently because even small changes have large effects
  • Every reserve requirement ratio has been zero percent since March 26, 2020, though the exam still tests the raise/lower relationship above

3. Setting Key Interest Rates

The Fed influences several benchmark interest rates. Understanding which rates are set by whom is frequently tested.

RateDefinitionSet By
Federal funds rateThe rate banks charge each other for overnight loans of reservesMarket-driven, but the Fed sets a target range
Discount rateThe rate the Fed charges banks for short-term loans directly from the FedThe Federal Reserve (directly)
Prime rateThe rate banks charge their most creditworthy customersCommercial banks (typically fed funds rate + 3%)

Key relationships:

  • The federal funds rate is the most important benchmark; changes ripple through the entire economy
  • The discount rate (the main one, called the primary credit rate) is set at the top of the FOMC's federal funds target range. The actual federal funds rate trades inside that range, so the discount rate sits above it. The Fed prices it higher on purpose so banks borrow from each other first, reserving Fed borrowing as a last resort
  • The prime rate is the highest of the three, set by commercial banks at approximately 3 percentage points above the federal funds rate
  • Under normal conditions the rates form a staircase from lowest to highest: federal funds rate, then discount rate, then prime rate

Exam Tip: Gotchas

  • The Fed does NOT directly set the federal funds rate. It sets a target range. The actual rate is determined by supply and demand in the overnight lending market between banks.
  • The discount rate IS directly set by the Fed. Banks borrow from the Fed at this rate as a last resort.

How Fed Actions Affect Markets

Every Fed action creates a chain reaction across asset classes. This table summarizes the key relationships:

Fed ActionInterest RatesBond PricesStock Prices (generally)Dollar Value
Buys securities (easing)DecreaseIncreaseIncreaseDecrease
Sells securities (tightening)IncreaseDecreaseDecreaseIncrease
Raises discount rateIncreaseDecreaseDecreaseIncrease
Lowers discount rateDecreaseIncreaseIncreaseDecrease

The core relationship to remember:

  • Interest rates and bond prices move in opposite directions (inverse relationship)
  • When rates rise, borrowing becomes more expensive, slowing economic activity
  • When rates fall, borrowing becomes cheaper, stimulating economic activity
  • A tightening Fed strengthens the dollar (higher rates attract foreign investment)
  • An easing Fed weakens the dollar (lower rates make dollar-denominated assets less attractive)
  • The discount rate is only what banks pay the Fed, so a change touches bank borrowing first. Market rates follow because the discount rate moves with the FOMC's federal funds target range. Since March 2020 the main discount window rate (the primary credit rate) has sat at the top of that range.

Exam Tip: Gotchas

  • Bond prices and interest rates are INVERSELY related. They never move in the same direction. If rates go up, bond prices go down, and vice versa.
  • A discount rate change reaches bond prices through market rates. A raise signals tightening, market rates rise, and bond prices fall. Do not read it as the Fed setting bond yields directly.
  • A tightening Fed strengthens the dollar. Higher U.S. rates attract foreign investment, increasing demand for dollars.

What Should You Check on Exam Day?

  • Can you explain that the Fed controls monetary policy, while Congress controls fiscal policy through spending and taxation?
  • Do you know open market operations are the Fed's most-used tool, that buying securities eases while selling tightens, and that the Fed buys in a recession or when inflation is low?
  • Can you state that the Fed sets the discount rate directly, but the federal funds rate is only a target range?
  • Do you know interest rates and bond prices move in opposite directions, so a tightening Fed lowers bond prices?
  • Can you explain that a tightening Fed strengthens the dollar, because higher rates attract foreign investment?