Determinants of corporate borrowing: A note

In his article Determinants of Corporate Borrowing, Myers (1977) says that it is not guaranteed that the maximum value of the firm is reached before the maximum value of the debt is utilized in the case in which the interest payment is fully tax deductible, but the tax shield is lost if the firm goes bankrupt. I have shown here that even in such a case the maximum value of the firm will always be achieved before the maximum available debt is utilized.