这题的考点想问一下是哪个知识点

问题如下：

Which statement best describes a possible bias in the WACC of the private target with a suboptimal debt ratio?

选项：

Private companies are likely to have WACC estimates below their optimal WACC because of a lower weight on debt.

Private companies are likely to have WACC estimates above their optimal WACC because of a higher weight on equity

Private companies are likely to have WACC estimates above their optimal WACC because of a higher weight on debt.

解释：

B is Correct. Recall the formula for WACC: r_wacc = w_dr_d (1-t)+ w_e r_e

First, a higher equity weight implies a lower debt weight, as these proportions combined must equal one. Also, re > rd, as equity is riskier than debt. Therefore, as wd falls, the WACC increases, approaching re as the debt ratio approaches zero. A suboptimal debt ratio translates to a higher than optimal WACC. A is incorrect because a lower debt ratio does not reduce WACC. C is incorrect because a higher debt weight likely lowers the WACC.