"An investor is in the 30% tax bracket. If corporate bonds offer 9.5% yields, what must municipals offer for the investor to prefer them to corporate bonds?"

Municipals must offer at least 6.30% yields.

Explanation:

Corporate bonds is a term used to describe a type of debt applied to securities that are issued by companies that wish to acquire funds to establish their investments and activities.

These resources can be acquired differently, but as these companies influence the local market with their activity, it is common for them to offer some after-tax income on corporate bonds.

In the case of the question above, this income is calculated as follows:

The after-tax yeld on the corporate bonds is: 0.095*(1-30) = 0.0630 = 6.30%

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