I. Introduction
A. This chapter examines the following questions:
What is the relationship between the money supply and
aggregate demand?
How can the Fed use its control of the money supply to
alter macro outcomes?
How effective is monetary policy, compared to fiscal
policy?
II. The Money Market
A. Money is traded like other commodities.
B. Monetary policy – The use of money and credit controls to
influence macroeconomic activity.
C. Interest Rate – The price paid for the use of money.
D. Money Balances
Most of the money is our common measures of money
supply (M1 and M2) is in the form of bank balances
Money Supply (M1) – Currency held by the
public, plus balances in transactions accounts.
M2 Money Supply - M1 plus balances in most
savings accounts and money market mutual funds.
The Price of Money – The cost of holding money
is its opportunity cost or the difference between the prevailing rate
of interest and the rate paid on deposit balances.
E. The Demand for Money (Figure 15.1, Page 300)
Demand for Money – The quantities of money
people are willing and able to hold at alternative interest rates,
ceteris paribus.
Portfolio Decision – The choice of how (where)
to hold idle funds.
Although holding money provides little or no interest,
there are reasons for doing so.
Transactions Demand
People hold money so they can buy goods and services.
Transactions Demand for Money – Money held for
the purpose of making everyday market purchases.
Precautionary Demand
Another reason people hold money is for sudden
emergency purchases.
Precautionary Demand for Money – Money held for
unexpected market transactions or for emergencies.
Speculative Demand
People also hold money for speculative purposes, so
they can respond to financially attractive opportunities.
Speculative Demand for Money – Money held for
speculative purposes, for later financial opportunities.
The Market-Demand Curve - The quantity of money that
people are willing and able to hold (demand) increases as interest
rates fall (ceteris paribus).
F. Equilibrium (Figure 15.1, Page 300)
The intersection of the money-demand and money-supply
curves establishes an equilibrium rate of interest.
Equilibrium Rate of Interest – The interest
rate at which the quantity of money demanded in a given time period
equals the quantity of money supplied.
G. Changing Interest Rates (Figure 15.2, Page
301)
The Federal Reserve is able to alter the money supply;
therefore, it can affect the equilibrium rate of interest.
By increasing the money supply, the Fed tends to lower
the equilibrium rate of interest. People are willing to hold larger
money balances only at lower interest rates.
Federal Funds Rate (Table 15.1, Page 302)
Federal Funds Rate – The interest rate for
inter-bank reserve loans.
When the Fed injects or withdraws reserves from the
banking system, via open-market operations, the interest rat on
inter-bank loans is most directly affected.
III. Interest Rates and Spending
A. Monetary Stimulus (Figure 15.3, Page 303)
The goal of monetary stimulus is to increase aggregate
demand. The mechanism for doing so is lower interest rates.
Aggregate Demand – The total quantity of output
demanded at alternative price levels in a given time period, ceteris
paribus.
Investment - Lowering the interest rates
encourages investment due to the lower cost of borrowing.
Aggregate Demand
The increased investment brought about represents an
injection of new spending into the circular flow. That jump will kick
off multiplier effects and result in an even larger increase in
aggregate demand.
The Fed’s objective of stimulating the economy is
achieved in three distinct steps:
An increase in the money supply
A reduction in interest rates
An increase in aggregate demand
Quantitative Impact
Fed Chairman Alan Greenspan claims that the impact of
a 1/10-point reduction in the long-term interest rate has the same
stimulus effect of $10 billion of new government spending.
World View: “Interest Rates Cut in Europe 11
Euro Nations Try to Stimulate Growth”
The central banks of the 11 European countries that will merge their
currencies into one in less than a month unexpectedly cut interest
rates today in a coordinated response to sagging economic growth.
Central banks (like the Fed) use interest rate reductions to stimulate
more spending. If successful, monetary stimulus will accelerate
short-run economic growth.
B. Monetary Restraint (Figure 15.3, Page 303)
To lessen inflationary pressures, the Fed will apply a
policy of monetary restraint.
Higher Interest Rates – Higher interest rates,
caused by Fed policy, are an attempt to discourage spending. Interest
rates may be increased by:
Selling bonds
Increasing the discount rate
Increasing the reserve requirement
Reduced Aggregate Demand – The ultimate
objective of a restrictive monetary policy is to reduce aggregate
demand. Monetary restraint is achieved with:
A decrease in the money supply.
An increase in interest rates.
A decrease in aggregate demand.
In the News: “Why Mortgage Rates Aren’t
Falling”
Despite interest rate reductions by the US Federal Reserve, mortgage
rates stayed high in 2001. The article points out that the Fed
controls short-term, not long-term rates.
IV. Policy Constraints
A. Constraints on Monetary Stimulus (Figure 15.4, Page 306)
Reluctant Lenders - The Fed does not have direct
control of the money supply. The banks themselves must expand the
money supply by making new loans.
Liquidity Trap
Liquidity Trap – The portion of the
money-demand curve that is horizontal; people are willing to hold
unlimited amounts of money at some (low) interest rate.
When interest rates are low, people may decide to hold
all the money they can get -- waiting for opportunities to improve.
Low Expectations – With little expectation of future
profit, investors are likely to be unimpressed by low interest rates
and may decline to use the lending capacity that banks make available.
In The News: “Uneasy Banks May Tighten
Loans, Stunt Recovery”
Increasing numbers of bad loans may cause banks to reduce lending
despite lower interest rates.
B. Limits on Monetary Restraint
Expectations - Consumers’ optimistic
expectations may cause them to believe that future income will be
sufficient to cover larger debts and higher interest charges.
Global Money - Market participants might also
tap global sources of money or local non-bank lenders not regulated by
the Fed. This makes it harder for the Fed to restrain aggregate
demand.
How Effective? – Some economists consider
monetary policies undependable. Keynes believed that it would not be
effective at ending a deep recession. However, the limitations on
monetary restraint are not considered as serious. The Fed has the
power to reduce the money supply. If the money supply shrinks far
enough, the rate of spending will have to slow.
World View: “Why Japan is Stuck”
Even though Japan had cut its discount rate to 0.5 percent in 1999,
the economy still wasn’t growing. Some economists believe that Japan
was in a liquidity trap.
In the News: “Vicious Cycle: Despite Rate
Cuts, Mood in Boardroom is Darkening Further”
In 2001, despite lower interest rates, the nation’s businesses are
cutting spending, closing facilities and laying off workers.
V. The Monetarist Perspective
A. In the Keynesian model, changes in the money supply affect macro
outcomes primarily through changes in interest rates.
B. The Equation of Exchange
Equation of Exchange – Money supply (M) time
velocity of circulation (V) equals level of aggregate spending (P X Q)
Formula:
Income Velocity of Money (V): - The number of
times per year, on average, a dollar is used to purchase final goods
and services; PQM.
The equation implies that if M (the money in
circulation) increases, then prices (P) or output (Q) must rise or V
must fall.
The goal of monetary policy is to change the macro
outcomes on the right side of the equation. It is possible, however,
that a change in M might not bring about a change in the desired
target variable. (Another might change instead.)
If M increases, prices (P) or output (Q) must rise, or
V must fall.
C. Stable Velocity.
Monetarists add some important assumptions to
transform the equation of exchange into a behavioral model of macro
performance.
One of these assumptions is that the velocity of money
(V) is stable.
Accordingly, total spending must rise if the money
supply (M) grows and V is stable.
D. Money-Supply Focus.
As Monetarists see it, changes in the money supply
must alter total spending, regardless of how interest rates move.
Therefore, monetarists believe that the Fed should not
try to manipulate interest rates, but should focus on the money supply
itself.
In The News: “Monetarists Reject Focus on
Lowering Rates”
Monetarists argue that lower interest rates will not necessarily
stimulate aggregate demand. To them, what matters is the level of the
money supply, not the interest rate.
E. “Natural” Unemployment.
Some monetarists claim that Q, as well as V, is
stable. They claim that the quantity of goods produced is primarily
dependent on structural forces (production capacity, labor-market
efficiency, etc.). These structural forces establish a “natural” rate
of unemployment that is immune to short-run policy intervention.
Natural Rate of Unemployment – Long-term rate
of unemployment determined by structural forces in labor and product
markets.
The most extreme monetarist perspective concludes that
changes in the money supply affect prices only.
In The News: “ ‘Not Worth a Continental’:
The U.S. Experience With Hyperinflation”
The government of the U.S. had no means to pay for the Revolutionary
War. So, they printed their own money. However, rapid expansion of the
money supply will push up prices.
F. Monetarist Policies
Fighting Inflation
The policy objective is to reduce aggregate demand to
fight inflation.
From a Keynesian perspective, the recommendation is to
shrink the money supply and drive up interest rates.
Monetarists argue that rates are already likely to be
high and an effective anti-inflation policy will cause rates to go
down, not up.
Real vs. Nominal Interest
Real Interest Rate – The nominal rate of
interest minus anticipated inflation rate.
Formula:
If the real interest rate is stable, changes in the
nominal interest rates reflect changes in anticipated inflation.
Monetarists advocate steady and predictable changes in
the money supply.
In The News: “Money Is Free!”
When inflation is high and interest rates low, the real interest rate
may even be negative. Monetarists would argue that nominal changes in
the interest rate have little effect on investment. Real interest
rates are the determinant of investment behavior.
Fighting Unemployment
The Keynesian cure for unemployment is to expand M and
lower interest rates.
Monetarists fear that an increase in M will lead, via
the equation of exchange, to higher P (prices).
From a monetarists perspective, expansionary monetary
policies are not likely to lead us out of a recession, rather such
policies might double our burden by heaping inflation on top of our
unemployment woes.
VI. The Concern for Content
A. Monetary policy, like fiscal policy, can affect the content of GDP
as well as its level.
B. The Mix of Output
Some industries, like the residential housing market,
are more susceptible to monetary policy than others.
Monetary policy can affect the competitive structure
of the market. Large, powerful corporations are more likely to obtain
“tight” money than smaller ones.
C. Income Redistribution - Monetary policy
redistributes money between lenders and borrowers.
VII. The Economy Tomorrow: Which Lever to Pull?
A. The Policy Levers
What Keynesians and Monetarists argue about is which
of the policy levers – M or V – is likely to be effective in altering
aggregate spending.
Monetarists point to the money supply (M) as the
principal lever.
Keynesians must rely on changes in V because tax and
expenditure policies have no direct impact on the money supply.
B. Crowding Out
If V is constant, changes in total spending can come
about only through changes in the money supply.
If the government raises taxes or borrows more money,
it effectively crowds out consumers and investors who would otherwise
be spending or borrowing.
Crowding Out – A reduction in private-sector
borrowing (and Spending) caused by increased government borrowing.
C. How Well Fiscal Policy Works: Two Views
(Table 15.2, Page 317)
The central issue is whether and how a change in G or
T will alter macroeconomic outcomes.
Keynesians assert that aggregate spending will be
affected as the velocity of money (V) changes.
Monetarists say no, because they anticipate an
unchanged V.
How well fiscal policy works depends on how much the
velocity of money can be changed by government tax and spending
decisions.
D. How Monetary Policy Works: Two Views (Table
15.3, Page 317)
Monetarists say a change in M must alter total
spending because V is stable.
Keynesians assert that V may vary, so they aren’t
convinced that monetary policy will always work.
How well monetary policy works depends on how stable
or predictable V is.
E. Is Velocity Stable? (Figure 15.6, Page 319)
Long-Run Stability. The velocity of money (V)
turns out to be quite stable over long periods of time.
Short-Run Instability. While stable in the long
run, V has many short-run variations -- tending to decline during
recessions.
F. Money-Supply Targets
The differing views of Keynesians and monetarists
clearly lead to different conclusions about which policy lever to
pull.
Monetarist Advice - Monetarists favor fixed
money-supply targets. They believe that V is stable in the long run
and unstable in the short-run, therefore, the safest course is to
focus on M.
Keynesian Advice – Keynesians reject fixed
money-supply targets. Rather, they advocate targeting interest rates,
not the money supply.
The Fed’s Eclecticism - The Fed has adopted an
eclectic mixture of monetarist and Keynesian policies.
In 2000, the US Federal Reserve attempted to engineer
a ‘soft landing’ for the economy, then abruptly changed course and
lowered interest rates from May 2000 until the end of 2001.
G. World View: “Deflation Still Haunts the
Bank of Japan”
In 2001, Japan faced deflation with prices falling for ten consecutive
months. There was pressure on the Bank of Japan to further increase
the money supply.
COMMON STUDENT ERRORS
Students often believe the following statements are
true. The correct answer is explained after the incorrect statement is
presented.
When the interest rate goes down, the demand for
money increases. Don’t fail to distinguish between a change in
demand and a change in quantity demanded. Remember that each demand
schedule (speculative, transactions, precautionary) is drawn on the
assumption of ceteris paribus. Unless there is a change in one of the
things held constant (e.g., expectations), there will be no change in
demand when the interest rate falls, only a change in quantity
demanded.
High nominal rates of interest mean high real rates
of interest. High nominal interest rates and high real interest
rates will coincide only if the average level of prices is not
changing rapidly enough to offset the differential. For example, if
the nominal rate is 10 percent and prices are rising at 10 percent,
the real rate of interest is zero.
Monetary policy is easy to determine and to
administer. One could easily get the idea that monetary policy is
easy to administer and that the Fed always knows the rate at which the
money supply should grow. This is not so. Many variables intervene to
make monetary policy difficult to prescribe and implement. Such
variables include timing and the duration of a given policy,
unanticipated events on the fiscal side, and problems abroad. The
Fed’s policymakers analyze the data available and do the best they can
to achieve a given objective, which often involves compromises. The
process is much more difficult than turning a printing press on and
off.