Chapter 15: Monetary Policy

Chapter 15: Monetary Policy

Learning Objectives

• Understand how interest rates are set in the money market.

• Recognize how monetary policy affects macroeconomic outcomes.

• Identify constraints on the impact of monetary policy.

• Distinguish between Keynesian and monetarist monetary theories.

Chapter Goals

• Examine the influence of the money supply on macro performance.

• Explore the relationship between the money supply, interest rates, and aggregate demand.

• Investigate how the Federal Reserve (Fed) can utilize its control over the money supply or interest rates to influence macroeconomic outcomes.

• Analyze the effectiveness of monetary policy compared to fiscal policy.

The Money Market

• Money is a commodity traded in the marketplace with a supply and demand that determines its price (the interest rate).

• The dynamics between the supply of money and the demand for money drive the pricing of this commodity.

Money Balances

• Cash and positive bank balances are part of the money supply, specifically categorized as M1.

• Holding money balances incurs an opportunity cost as money held for transactions earns little to no interest compared to alternative investments such as bonds.

The Price of Money

• The opportunity cost of holding cash (the price of money) is equal to the market interest rate, as individuals forfeit potential interest earnings.

Portfolio Choices

• Idle funds can be held in various forms.

• The “price” of holding money corresponds to the interest forgone from alternative investment choices.

The Demand for Money

• Definition: The demand for money refers to the quantities individuals are willing and able to hold at various interest rates (ceteris paribus).

• Reasons for holding money balances include:

  • Transactions Demand: Money held for daily market purchases.

  • Precautionary Demand: Money reserved for unexpected transactions or emergencies.

  • Speculative Demand: Money maintained for potential future investments.

The Market Demand Curve

• The market demand for money slopes downward, indicating that as interest rates fall, the quantity of money demanded increases (ceteris paribus).

The Market Supply

• The Federal Reserve controls the money supply and can target specific quantities for M1 using various monetary policy tools.

• The money supply curve is depicted as a vertical line at the Fed’s supply target.

Money Market Equilibrium

• Equilibrium Interest Rate: The interest rate at which the quantity of money demanded equals the quantity of money supplied.

• This equilibrium occurs at the intersection (E1) of the money supply and demand curves.

  • If interest rates exceed equilibrium, the quantity of money supplied surpasses the quantity demanded, leading individuals to transfer funds from cash to bonds or other assets.

  • The interest rate will fall until equilibrium (E1) is restored.

Changing the Rate of Interest

• The Fed can adjust the money supply to change the equilibrium interest rate:

  • Increasing the money supply leads to a decrease in the equilibrium interest rate.

  • Example: If the money supply rises from g1 to g3, the equilibrium interest rate may drop from 7% to 6%.

Interest Rates and Spending

• The ultimate goal of monetary policy is to influence macroeconomic outcomes like prices, output, and employment by shifting aggregate demand.

Monetary Stimulus

• The Fed aims to stimulate the economy through:

  • Increasing the money supply.

  • Reducing interest rates.

  • Enhancing aggregate demand.

Case Study: Fed Open Market Purchases in 2020

• The Fed made notable purchases of Treasury securities in 2020 to counteract economic disruptions caused by COVID-19, promoting quick recovery.

• Critical Analysis: Such open-market purchases decrease interest rates, encouraging borrowing and spending, ultimately shifting the Aggregate Demand (AD) curve to the right.

Monetary Restraint

• The Fed can restrain monetary supply through:

  • Decreasing the money supply.

  • Raising interest rates.

  • Diminishing aggregate demand.

Constraints on Monetary Stimulus

Short- vs. Long-Term Rates

• The Fed’s influence primarily affects short-term interest rates.

• Successful monetary policy requires that long-term rates closely reflect changes in short-term rates.

Reluctant Lenders

• The effectiveness of monetary stimulus relies on banks’ willingness to lend.

• Banks may hold excess reserves rather than increasing lending activities, limiting growth in the money supply.

Liquidity Trap

• In scenarios where interest rates are low, individuals may opt to hold large amounts of cash, as the opportunity cost is minimal, leading to stagnation in the effectiveness of monetary policy despite an expanded money supply.

Low Expectations

• Investment decisions hinge not solely on interest rates but also on expectations of economic stability.

• During recessions, firms lack incentives to expand, leading to inelastic investment demand that may not respond to reduced interest rates.

Coronavirus Pandemic Example

• Expectations were particularly impactful during the COVID-19 pandemic when fears related to the virus hindered consumer spending and business investment.

• Despite lower interest rates, market participants exhibited inelastic demand for money.

Time Lags

• Businesses typically take time to adjust to interest rate changes, leading to delays between interest rate adjustments and corresponding changes in investment.

Constraints on Monetary Restraint

Expectations

• High profit expectations may drive businesses to continue borrowing and spending despite rising interest rates.

• Consumers might expect future earnings to cover increased debts and higher interest payments.

Global Money

• In tight domestic money markets, businesses may seek foreign loans or utilize non-bank financing sources.

Effectiveness of Monetary Policy

• Many analysts view monetary policy as less reliable, particularly during deep recessions.

• Constraints on monetary restraint are typically less severe, yet the response time remains paramount.

The Monetarist Perspective

• Keynesian View: Changes in money supply affect macroeconomic outcomes through interest rate fluctuations.

• Monetarist View: Short-term business cycle effects are not influenced by monetary stimulus; rather, it primarily affects price levels.

• Monetarists assert that monetary policy is a robust tool for managing inflation, not for affecting real output.

The Equation of Exchange

• Formula: $MV = PQ$

  • Where:

  • M = Money supply

  • V = Velocity of money

  • P = Price level

  • Q = Quantity of goods and services

• The equation illustrates that an increase in M must lead to a corresponding increase in P or Q, or a decrease in V to maintain balance.

Stable Velocity

• Monetarists assume that the velocity of money (V) remains stable. Changes in M result in changes in total spending if V is constant.

Money Supply Focus

• Monetarists argue that changes in the money supply must directly influence total spending, emphasizing that the Fed should focus on controlling M rather than manipulating interest rates.

“Natural” Rate of Unemployment

• Some monetarists propose that both Q and V are stable, suggesting changes in M will only affect prices (P), as production capacity and market efficiency determine the “natural” unemployment rate, which remains unaffected by short-term policy adjustments.

Long-Run Aggregate Supply

• An increase in aggregate demand due to monetary stimulus results in inflation, as costs increase without boosting output.

Monetarist Policies

• Fundamental disagreements exist between Keynesians and monetarists regarding inflation management.

  • Keynesians support reducing M and increasing interest rates.

  • Monetarists believe effective anti-inflation measures can lead to a decrease in nominal interest rates through diminished inflationary expectations.

Real vs. Nominal Interest Rates

• Defining Terms:

  • Nominal interest rates are the rates openly observed and paid.

  • Real interest rate = Nominal rate - Anticipated inflation rate.

  • Changes in nominal rates reflect changes in anticipated inflation, provided real rates remain stable.

Fighting Inflation with Monetary Policy

• To rectify an inflationary gap, both Keynesians and monetarists agree on reducing money supply (M) to decrease overall spending.

  • Keynesians lean on raising interest rates, while monetarists predict that tight money supply will reduce inflationary expectations, causing nominal interest rates to decrease.

Short- vs. Long-Term Rates

• Short-term rates are highly responsive to Fed interventions.

• Long-term rates adjust more slowly due to borrowers considering future economic conditions.

• Advocating steady and predictable changes in the money supply can stabilize long-term rates and promote consistent GDP growth.

Fighting Unemployment

• The Keynesian approach for recession recovery involves expanding M and lowering interest rates.

• Monetarists worry that increasing M will lead to inflation (P), arguing for stable money supply growth to promote real production decisions without price fluctuation concerns.

The Mix of Output

• The impact of Federal Reserve actions influences GDP composition.

• Interest rate changes do not equally affect all spending—higher rates deter large purchases (homes, cars) most severely, while smaller purchases (like food) remain unaffected.

Income Redistribution through Monetary Policy

• Fluctuations in interest rates lead to income redistribution:

  • Lower rates benefit borrowers by reducing interest payments.

  • Lenders receive lower interest payments, resulting in a shift of income from lenders to borrowers.

Policy Tools and Debates

• The equation of exchange ($MV = PQ$) is acknowledged by both Keynesians and monetarists.

• They disagree on focus:

  • Monetarists prioritize M as the principal lever for macroeconomic policy.

  • Keynesians emphasize V changes through fiscal policy, considering tax and expenditure policies.

Crowding Out in Monetarist Thinking

• Monetarists assert that if V remains constant, increases in government spending (G) reduce private sector spending (C or I), leading to “crowding out.”

Keynesian Views on Velocity Changes

• Keynesians contend that V fluctuates and slows during recessions, making changes in M ineffective in stimulating sufficient total spending.

• Increased government spending can improve aggregate spending by effectively activating idle money.

Tables Evaluating Fiscal Policy

• Comparative evaluations of monetary policy based on Keynesian and monetarist perspectives highlight their differing conclusions about effective policy lever targeting.

Stability of Velocity

• Long-Run Stability: V averages around 1.77 over the previous fifty years, with minimal fluctuation.

• Short-Run Instability: Keynesians point to significant short-run variations in V, especially during economic downturns (notably the Great Recession).

Policy Targets

• Monetarists advocate for fixed money supply targets, whereas Keynesians support targeting interest rates and fiscal policy utilization.

Inflation Targeting

• The Fed employs inflation targeting to signal necessary monetary policy adjustments when aiming for price stability.

Employment Targeting

• Employment targeting involves setting an unemployment rate threshold (6.5%) that dictates monetary stimulus actions in relation to inflation rates (targeted between 2-3%).

Policy Decision Complexity

• In practice, making policy decisions is complicated.

• Inflation can surge before achieving full employment, complicating conflicts between inflation targeting and employment needs.