Final answer:
Arch Bank has a lower leverage ratio compared to Medes Bank. In the second scenario, where the value of assets declines, Medes Bank is closer to insolvency due to its higher leverage ratio.
Step-by-step explanation:
The leverage ratio is a measure of a bank's capital adequacy and is calculated by dividing a bank's total assets by its capital. In the given scenario, Arch Bank's leverage ratio is $200,000/$40,000 = 5, and Medes Bank's leverage ratio is $200,000/$20,000 = 10. Therefore, Medes Bank has a higher leverage ratio compared to Arch Bank, indicating that Medes Bank is more leveraged.
When the assets of both banks increase by 10% to $220,000, the capital of Arch Bank increases by 10% of $40,000, which is $4,000, and the capital of Medes Bank increases by 10% of $20,000, which is $2,000.
Under the second scenario, where the assets decline by 10% to $180,000, the capital of Arch Bank decreases by 10% of $40,000, which is $4,000, and the capital of Medes Bank decreases by 10% of $20,000, which is $2,000. Therefore, in this scenario, both banks see a percentage decrease in capital, but Medes Bank, with its higher leverage ratio, is closer to insolvency.