Chapter 15 – Money Creation
D. Profits, liquidity, and the federal funds market:
1. Profits: Banks are in business to make a profit like other firms. They earn profits
primarily from interest on loans and securities they hold.
2. Liquidity: Banks must seek safety by having liquidity to meet cash needs of depositors
and to meet check clearing transactions.
3. Federal funds rate: Banks can borrow from one another to meet cash needs in the federal
funds market, where banks borrow from each other’s available reserves on an overnight
basis. The rate paid is called the federal funds rate.
VI. The Banking System: Multiple-Deposit Expansion (all banks combined)
A. The entire banking system can create an amount of money which is a multiple of the system’s
excess reserves, even though each bank in the system can only lend dollar for dollar with its
excess reserves.
B. Three simplifying assumptions:
1. Required reserve ratio assumed to be 20 percent. (The actual reserve ratio averages 10
percent of checkable deposits.)
2. Initially banks have no excess reserves; they are “loaned up.”
3. When banks have excess reserves, they loan it all to one borrower, who writes check for
entire amount to give to someone else, who deposits it at another bank. The check clears
against original lender.
C. System’s lending potential: Suppose a junkyard owner finds a $100 bill and deposits it in
Bank A. The system’s lending begins with Bank A having $80 in excess reserves, lending
this amount, and having the borrower write an $80 check which is deposited in Bank B. See
further lending effects on Bank C.
D. Monetary multiplier is illustrated in Table 15.2.
1. Formula for monetary or checkable deposit multiplier is:
Monetary multiplier = 1/required reserve ratio or m = 1/R or 1/.20 in our example.
2. Maximum deposit expansion possible is equal to: excess reserves x monetary multiplier,
or
3. Figure 15.1 illustrates this process.
4. Higher reserve ratios generate lower money multipliers.
a. Changing the money multiplier changes the money creation
potential.
b. Changing the reserve ratio changes the money multiplier but be careful!
It also changes the amount of excess reserves that are acted on by the multiplier.
Cutting the reserve ratio in half will more than double the deposit creation potential
of the system.
E. The process is reversible. Loan repayment destroys money, and the money multiplier
increases that destruction.
VII. LAST WORD: Banking, Leverage, and Financial Stability
A. Leverage boosts banking profits, but makes the banking system less stable.
B. The term leverage is used in finance to describe how the use of borrowed money can magnify
both profits and losses. That is, you only put-up part of the money out of your own pocket to
make an investment and you borrow the rest.
C. A modern bank uses a lot of leverage.
1. Only 5% of the money that it invests comes for shareholders.
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