The narrowest definition of the money supply includes: Answer choices:

a. stocks and bonds.

b. currency in circulation, checkable bank deposits, and traveler's checks.

c. mortgages and insurance policies.

d. currency in bank vaults.

The narrowest definition of the money supply includes b. currency in circulation, checkable bank deposits, and traveler's checks.

Explanation:

The money supply - or money stock - can be defined, in the simplest way, as the entire stock of currency and other liquid instruments available in an economy at a given time. Therefore, the money supply includes coins and cash, as well as other "liquid instruments" or money substitutes like bank deposits and travaler's checks.