Answer:
1.Taxable bonds
2Taxable bonds
3.They have the same after-tax yield
4.
municipal bond
Step-by-step explanation:
The missing tax brackets are zero,10%,20% and 30%
Zero % tax rate:
municipal bond pays 4%
taxable bonds after tax yield=5%*(1-0)=5%
10% tax rate
municipal bond pays 4%
taxable bond after tax yield=5%*(1-10%)=4.5%
20% tax rate
municipal bond pays 4.0%
taxable bond after tax yield=5%*(1-20%)=4.0%
30% tax rate
municipal bond pays 4.0%
taxable bond after tax yield=5%*(1-30%)=3.50%