Solution
Solution
11. According to the accompanying diagram, monetary policy will be more effective in
Albernia and less effective in Brittania. In Albernia a relatively small change in the
money supply will lead to a large change in the interest rate, but in Brittania a rela-
tively large change in the money supply will lead to only a small change in the inter-
est rate.
MS2MS2
MS1MS1
Interest
rate, r
Interest
rate, r
(a) Albernia (b) Brittania
12. During the Great Depression, businesspeople in the United States were very pes-
simistic about the future of economic growth and reluctant to increase investment
spending even when interest rates fell. How did this limit the potential for monetary
policy to help alleviate the Depression?
12. Monetary policy is effective when changes in the money supply change the interest
rate and, in turn, the change in the interest rate changes investment spending. If
13. Because of the economic slowdown associated with the 2007–2009 recession, the
Federal Open Market Committee of the Federal Reserve, between September 18,
2007, and December 16, 2008, lowered the federal funds rate in a series of steps
from a high of 5.25% to a rate between zero and 0.25%. The idea was to provide a
boost to the economy by increasing aggregate demand.
a. Use the liquidity preference model to explain how the Federal Open Market
Committee lowers the interest rate in the short run. Draw a typical graph that
CHAPTER 15 MONETARY POLICY S-215
KrugWellsECPS4e_Macro_CH15.indd S-215 2/6/15 11:18 AM