suppose firms a and b have the same amount of assets, total assets are equal to total invested capital, pay the same interest rate on their debt, have the same basic earning power (bep), finance with only debt and common equity, and have the same tax rate. however, firm a has a higher debt to capital ratio. if bep is greater than the interest rate on debt, firm a will have a higher roe as a result of its higher debt ratio. a. true b. false