Monetary Policy and the Federal Reserve System: Principles of Macroeconomics Study Notes

Monetary Policy and the Federal Reserve System

Introduction

Monetary policy is a central topic in macroeconomics, focusing on how a nation's central bank manages the supply of money and interest rates to achieve macroeconomic objectives. In the United States, the Federal Reserve System (the Fed) is responsible for conducting monetary policy.

The Federal Reserve System

Definition and Role

• Central Bank: The public authority that regulates a nation's depository institutions and controls the quantity of money.

• Monetary Policy: The Fed sets interest rates and adjusts the quantity of money in circulation to influence economic activity.

• Independence: The Fed is not part of the government, despite its name.

Monetary Policy Objectives and Framework

Objectives

• Mandated by the Federal Reserve Act of 1913 and its amendments.

• The Fed and the Federal Open Market Committee (FOMC) aim to maintain long-term growth of monetary and credit aggregates in line with the economy's potential to increase production.

• Dual Mandate: Promote maximum employment, stable prices, and moderate long-term interest rates.

Key Goal: Price Stability

• Price stability is considered the source of maximum employment and moderate long-term interest rates.

Operational Goals

• The Fed monitors two measures of inflation: Consumer Price Index (CPI) and Personal Consumption Expenditure (PCE) deflator.

• Core PCE Deflator: Excludes fuel and food; used as the operational guide for inflation.

• The rate of increase in the core PCE deflator is the core inflation rate.

• The Fed targets keeping core inflation within a comfort zone of 1 to 2 percent per year.

Current Monetary Policy Framework

• Average Inflation Targeting: The Fed aims to keep inflation "on average" at 2 percent over the medium to long run.

Maximum Employment Goal

• Stable prices are primary, but the Fed also monitors the business cycle.

• Output Gap: Percentage deviation of real GDP from potential GDP.

• Positive output gap: Increasing inflation; Negative output gap: Unemployment above the natural rate.

• The Fed seeks to minimize the output gap.

Responsibility for Monetary Policy

• The Fed's FOMC makes monetary policy decisions.

• Congress does not make policy decisions but receives reports and testimony.

• The President appoints members and the Chair of the Board of Governors.

The Conduct of Monetary Policy

Key Questions

1. What is the Fed's monetary policy instrument?

2. How does the Fed make its policy decision?

3. How does the Fed implement its policy decisions?

Monetary Policy Instrument

• Monetary Base: The sum of currency in circulation and reserves held by banks at the Fed.

• Federal Funds Rate: The interest rate at which banks borrow and lend overnight from each other.

• The Fed sets a target for the federal funds rate and uses open market operations to achieve it.

Recent Developments

• Interest rates have approached the Zero Lower Bound (ZLB).

• At the ZLB, the Fed uses Quantitative Easing (QE) or Large Scale Asset Purchases (LSAPs) and Forward Guidance.

Decision-Making Strategy

• The Fed assesses the current state of the economy and forecasts:

  • Inflation rate

  • Unemployment rate

  • Output gap

Policy Implementation

• The Fed uses open market operations to adjust the quantity of bank reserves and influence the federal funds rate.

• Two key markets:

  • The federal funds market

  • The market for bank reserves

Federal Funds Market

• Higher federal funds rate increases the supply of overnight loans and decreases demand.

• Equilibrium federal funds rate balances supply and demand.

Market for Bank Reserves

• Banks hold reserves to meet required ratios and use excess reserves to make loans.

• Reserves are costly to hold; higher federal funds rate reduces the quantity of reserves demanded.

Other Interest Rates

• Discount Rate: The rate at which the Fed lends to banks overnight; caps the federal funds rate.

• Interest on Reserves: The rate the Fed pays on reserves held at the Fed; sets a floor for the federal funds rate.

• The corridor between these rates is typically 0.5 percentage points.

Interest Rate	Role
Discount Rate	Caps the federal funds rate
Interest on Reserves	Sets a floor for the federal funds rate
Federal Funds Rate	Targeted by the Fed, set within the corridor

Monetary Policy Transmission

Overview

Monetary policy affects the economy through several transmission channels:

• Lowering the federal funds rate leads to:

  1. Lower short-term interest rates and exchange rates

  2. Increased money supply and loanable funds

  3. Lower long-term real interest rates

  4. Increased consumption, investment, and net exports

  5. Higher aggregate demand

  6. Growth in real GDP and inflation rate

• Raising the federal funds rate has the opposite effects.

The Demand for Money

Influences on Money Holding

• Price Level: Higher price level increases nominal money demand but not real money demand.

• Interest Rate: Opportunity cost of holding money; higher rates decrease money demand.

• Real GDP: Higher real GDP increases money demand due to greater expenditure volume.

• Financial Innovation: Reduces the cost of switching between money and interest-bearing assets, decreasing money demand.

Demand for Money Curve

• Shows the relationship between the quantity of real money demanded ($M/P$) and the nominal interest rate, holding other factors constant.

• A rise in the interest rate decreases the quantity of real money demanded; a fall increases it.

Shifts in the Demand for Money Curve

• Changes in real GDP or financial innovation shift the demand curve.

• Decrease in real GDP or financial innovation shifts the curve leftward; increase in real GDP shifts it rightward.

Money Supply and Market Equilibrium

Money Supply

• The Fed determines the quantity of money supplied, which is fixed on any given day.

• The supply of money curve is vertical at the given quantity.

Money Market Equilibrium

• Occurs when the quantity of money demanded equals the quantity supplied.

• Short-run and long-run adjustments differ fundamentally.

Short-Run Equilibrium

• Fed uses open market operations to set the quantity of money.

• Equilibrium interest rate is determined by the intersection of money demand and supply.

• If interest rate is above equilibrium, excess money leads people to buy bonds, lowering the rate.

• If interest rate is below equilibrium, shortage of money leads people to sell bonds, raising the rate.

Interest Rate Determination

• Interest Rate: The percentage yield on a financial security (e.g., bond or stock).

• Bond prices and interest rates are inversely related:

  • If bond price falls, interest rate rises.

  • If bond price rises, interest rate falls.

• Forces in the money market determine the interest rate.

Long-Run Equilibrium and Monetary Policy Effects

Long-Run Equilibrium

• In the long run, the loanable funds market determines the real interest rate.

• Nominal interest rate equals the equilibrium real interest rate plus expected inflation:

$i = r + a^*$

• In long-run equilibrium, real GDP equals potential GDP; price level adjusts to equate real money supply and demand.

• If the Fed increases the quantity of money, the price level rises by the same percentage in the long run, with no change in real variables.

Monetary Policy and Aggregate Demand (AD)

• Expansionary Monetary Policy: Decreases nominal interest rates, increases money supply and reserves, shifts AD curve rightward.

• Contractionary Monetary Policy: Increases nominal interest rates, decreases money supply and reserves, shifts AD curve leftward.

Policy Lags and Effectiveness

Types of Policy Lags

• Inside Lag: Time to recognize and implement policy.

• Outside Lag: Time for policy to affect the economy; effectiveness depends on responsiveness of spending to interest rates.

Advantages and Disadvantages

• Monetary policy shares limitations with fiscal policy but has shorter inside lags.

• Outside lags are longer and effects are indirect, variable, and hard to predict.

Summary Table: Monetary Policy Transmission Effects

Fed Action	Short-Term Effects	Long-Term Effects
Lower Federal Funds Rate	Lower interest rates, increased money supply, higher AD	Higher real GDP, higher inflation
Raise Federal Funds Rate	Higher interest rates, decreased money supply, lower AD	Lower real GDP, lower inflation

Additional info:

• For more details on the structure of the Federal Reserve System, open market operations, the money creation process, and macroprudential policy, see supplemental lecture notes.