Final answer:
The initial leverage ratio for Happy Bank was 6, and after defaults on loans, it rose to approximately 8.61. The bank's total assets and capital declined by approximately 5.67% and $68 respectively.
Step-by-step explanation:
Let's begin by completing the initial balance sheet for Happy Bank. The bank starts with $200 in bank capital and $1,000 in deposits. It must hold 15% of the deposits as reserves, which is $150 (0.15 x $1,000). The rest of the deposits can be used for loans, which amounts to $850 ($1,000 - $150). So, the completed balance sheet looks like this:
Reserves: $150
Deposits: $1,000
Loans: $850
Bank Capital: $200
The leverage ratio is calculated by dividing total assets by bank capital, which gives us ($1,000 + $200) / $200 = 6.
When 8% of the loans become worthless, the value of loans declines by $68 (0.08 x $850). The new balance sheet after the default will have:
Reserves: $150
Deposits: $1,000
Loans: $782 (originally $850 - $68)
Bank Capital: $132 (originally $200 - $68)
The new leverage ratio becomes ($1,000 + $132) / $132 = approximately 8.61.
The bank's total assets decline by $68/$1,200 = approximately 5.67% and the bank's capital declines by 8% ($68 from the initial $850 in loans).