, and the equilibrium federal funds rate remains unchanged at . In panel (b) when the
Chapter 10 Conduct of Monetary Policy: Tools, Goals, Strategy, and Tactics
223
Quantity of
Reserves, R
NBR
i
d
1
2
i
ff
Federal
Funds Rate
i
er
R
1
s
R
2
d
R
1
d
i
ff
1
2
F I G U R E 1 0 . 4
Response to a Change in Required Reserves
When the Fed raises reserve requirements, required reserves increase, which increases the
demand for reserves. The demand curve shifts from
to
, the equilibrium moves from
point 1 to point 2, and the federal fund rate rises from
to
.
i
2
ff
i
1
ff
R
d
2
R
d
1
C A S E
How the Federal Reserve’s Operating
Procedures Limit Fluctuations in the
Federal Funds Rate
An important advantage of the Fed’s current procedures for operating the discount win-
dow and paying interest on reserves is that they limit fluctuations in the federal funds
rate. We can use our supply-and-demand analysis of the market for reserves to see why.
Suppose that initially the equilibrium federal funds rate is at the federal funds rate
target of
in Figure 10.5. If the demand for reserves has a large unexpected increase,
the demand curve would shift to the right to
where it now intersects the supply
curve for reserves on the flat portion where the equilibrium federal funds rate,
, equals the discount rate, i
d
. No matter how far the demand curve shifts to the right,
the equilibrium federal funds rate,
, will just stay at i
d
because borrowed reserves
will just continue to increase, matching the increase in demand. Similarly, if the
demand for reserves has a large unexpected decrease, the demand curve would shift
to the left to
and the supply curve intersects the demand curve on its flat por-
tion where the equilibrium federal funds rate, , equals the interest rate paid on
reserves i
er
. No matter how far the demand curve shifts to the left, the equilibrium
federal funds rate
will stay at i
er
because excess reserves will just keep on increas-
ing so that the quantity demanded of reserves equals the quantity of nonborrowed
reserves supplied.
Our analysis therefore shows that the Federal Reserve’s operating
procedures limit the fluctuations of the federal funds rate to between i
er
and i
d
.
If the range between i
er
and i
d
is kept narrow enough, then the fluctuations
around the target rate will be small.
i
¿
ff
i
¿
ff
R
d
¿
,
i
–
ff
i
–
ff
R
d
–
,
i
*
ff
Access
www.federalreserve
.gov/fomc
for a discussion
about the Federal Open
Market Committee, list of
current members, meeting
dates, and other current
information.
224
Part 4 Central Banking and the Conduct of Monetary Policy
Tools of Monetary Policy
Now that we understand how the three tools of monetary policy—open market oper-
ations, discount lending, and reserve requirements—can be used by the Fed to
manipulate the money supply and interest rates, we will look at each of them in turn
to see how the Fed wields them in practice and how relatively useful each tool is.
Open Market Operations
Open market operations are the primary tool used by the Fed to set interest rates.
There are two types of open market operations: Dynamic open market operations
are intended to change the level of reserves and the monetary base, and defensive
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