Chap 26

MONEY, BANKS, AND THE FEDERAL RESERVE 233
Answers to the Review Quizzes
Page 236 (page 608 in Economics)
1. Money is anything that is a means of payment. Money has three functions: medium of exchange
(money is accepted in exchange for goods and services), unit of account (prices are quoted in terms
of money), and store of value (money can be held and exchanged for goods and services later).
Packets of chewing gum do not function as money because they are not particularly good as stores
of value—gum deteriorates. Additionally, packets of gum are not generally accepted in exchange
for goods and services, so packets of gum are not a medium of exchange.
2. Commodities are not used as money because of several problems. Many commodities are bulky.
And many commodities change in value over time. Using as money a commodity that changes in
value would be awkward because prices would change simply because the commodity’s value
changed. Additionally, using a commodity as money implies that money has a high opportunity
cost, whereas currency and bank deposits have low opportunity costs.
3. The main component of money in the United States today is deposits at banks and other
depository institutions. Currency and travelers’ checks are two other components of money.
4. The official measures of money are M1 (the sum of currency, travelers’ checks, and checking
deposits owned by individuals and businesses), M2 (the sum of M1, savings deposits, time
deposits, and money market mutual funds), and M3 (the sum of M2, large-scale time deposits,
and term deposits). All the components of M1 are truly money because all the components serve
as a means of payment. Some of the components of M2 and especially M3 are not truly money
because they are not a means of payment. (For instance, funds at money market mutual funds
cannot be used as a means of payment for small purchases.) But all of these “non-money” assets
are highly liquid so they are operationally similar to money.
5. Checks and credit cards are not money because they are not a means of payment. A check is an
order to transfer a deposit from one person to another. The deposits are money but the checks are
not. Credit cards are a way to obtain an instant loan. The loan still needs to be repaid with money
so the credit card is not a means of payment, that is, it is not money.
Page 241 (page 613 in Economics)
1. All depository institutions take deposits from households and firms and make credit available to
other households and firms. Savings and loan associations, savings banks, and credit unions differ
from other depository institutions because they generally make consumer loans and home
purchase loans. Money market mutual funds differ from other intermediaries because they use
their deposits to buy liquid assets such as U.S. Treasury bills, that is, they provide credit but do
not make loans as such.
2. Liquidity is the ability to turn an asset quickly into money at a fixed price. Depository institutions
create liquidity when they offer deposits that can be withdrawn as money at short (or no) notice
and then use these deposits to make long-term loans.
3. Depository institutions lower the cost of borrowing and lending because they specialize in
borrowing and lending. For instance, a firm that wants to borrow a large sum of money need only
visit a depository institution to arrange such a loan. In the absence of depository institutions, the
firm would need to undertake many transactions with many loaners, which would be a costly
endeavor. Similarly, a saver wishing to loan money simply deposits it with an institution which
will loan it for the saver. In the absence of depository institutions, the saver would need to contact
many potential borrowers, which would be a costly endeavor. Depository institutions lower the
cost of monitoring borrowers because they specialize in this task. Such specialization, as well as the