The banking system currently has $10 billion of reserves, none of which are excess. people hold deposits and no currency and the reserve requirement is 10%. if the fed raises the reserve requirement to 20% and as the same time buys $1 billion of bonds, then by how much does the money supply change?

money supply will decrease by $45 billion

Explanation:

the current money multiplier = 1 / reserve ratio = 1 / 10% = 10, but the new money multiplier will be = 1 / 20% = 5

if the banks' total reserves are $10 billion, then the total deposits are $100 billion

the new reserve ratio will decrease the money supply by $50 billion (= $10 billion in extra reserves x 5). At the same time, the money injected by the Fed with the purchase of $1 billion in bonds will increase the money supply by $1 billion x 5 = $5 billion.

The net effect will be -$50 billion + $5 billion = -$45 billion

1 ) Debit Allowance for uncollectible accounts Adjustment $8,400 Credit Allowance for uncollectible accounts $8,400

2 a) Debit Doubtful Debt $7,560 Credit Accounts Receivable $7,560

b) Allowance for uncollectible accounts balance = $6,888

3 a) Debit Doubtful Debt $11,340 Credit Accounts Receivable $11,340

 b) Allowance for uncollectible accounts balance = $6,132

Explanation:

2021

Uncollected balance = $144,000- $102,000 = $42,000

Allowance for uncollectible Accounts = $42,000*20% = 8,400

2 b) Uncollectible accounts balance = $42,000- $7,560 =$34,440 *20%

                                                                                     = $6,888

3 b) Uncollectible accounts balance = $42,000 - $11,340

                                                     =30,660*20%

                                                     =$6,132