Suppose a banking system has $120 million in deposits, a required reserve ratio of 20 percent, and total bank reserves for the whole system of $100 million. Then the potential deposit creation for the whole system is equal to:

$380 million

Explanation:

Given that,

Deposits = $120 million

Required reserve ratio = 20 percent

Total bank reserves = $100 million

Required reserve ratio refers to the portion of deposits that is kept with the reserve bank.

Required reserves:

= Deposits × Required reserve ratio

= $120 million × 0.2

= $24 million

Excess reserves:

= Total reserves - Required reserves

= $100 - $24

= $76

So, there is a excess reserves in this economy.

Money multiplier = 1/Required reserve ratio

                            = 1/0.2

                            = 5

Therefore, the total money creation potential of this deposit is as follows:

= Excess reserves × Money multiplier

= $76 × 5

= $380 million

Hence, an increase in deposit creation by $380 million.

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