Question

An increase in the firm's WACC will decrease projects' NPVs, which could change the accept/reject decision for any potential project. However, such a change would have no impact on projects' IRRs. Therefore, the accept/reject decision under the IRR method is independent of the cost of capital.
True

or

False

Answer 1

Answer:

False

Explanation:

The first part was true. A higher WACC results in a lower NPV simply because a higher discount rate results in a lower present value.

E.g. 100 / (1 + 6%)³ = 83.96, but if we increase r to 10%, then 100 / (1 + 10%)³ = 75.13

The second part is wrong because under the IRR method, the decision rule is very simple, all projects are accepted if their IRR is higher than the project's WACC (or discount rate). I.e. if hte project's WACC increases, so does the chance of the project being rejected because the IRR might be lower than the WACC.