Answer: 5.90%
Step-by-step explanation:
From the question, we are informed that we should calculate a taxable equivalent yield on a municipal bond with a yield to maturity of 4.25 percent for an investor in the 28 percent marginal tax bracket. This will be:
Taxable equivalent yield = Tax free municipal bond yield / 1 - Tax rate
= 4.25% / (1 - 28%)
= 0.0425 / (1 - 0.28)
= 0.0425 / 0.72
= 0.0590278
= 5.90%