Final answer:
The value of the firm increases by $640,000 due to issuing $1 million in debt to repurchase equity, after considering the defined corporate and personal tax rates.
Step-by-step explanation:
In a world with corporate taxes and personal taxes on interest income, if the corporate tax rate is 34%, the personal tax rate on interest income is 20%, and there are no costs of financial distress, the value of the firm will change when it issues $1 million in debt to repurchase equity. The relevant formula is V1 = Vu + [1 -(1-te)/(1-t) πt)] D - PV (Distress Costs). We can insert the given values to find the change in firm value as a result of the new debt.
The value of the firm changes by $680,000 if it issues $1 million in debt to repurchase equity when considering the given tax rates and no costs of financial distress.
The detailed calculation is as follows. The corporate tax shield is (1-te) × D = (1 - 0.34) × $1,000,000 = $660,000. The personal tax on the interest income reduces the advantage of the debt by (1-t)/(1-te) × t × D = (1-0.20)/(1-0.34) × 0.20 × $1,000,000 = $20,000. The increase in the value of the firm due to the issuance of debt, after taking into account the personal tax on interest income, is therefore $660,000 - $20,000 = $640,000.