Langston Labs has an overall (composite) WACC of 10%, which reflects the cost of capital for its average asset. Its assets vary widely in risk, and Langston evaluates low-risk projects with a WACC of 8%, average projects at 10%, and high-risk projects at 12%. The company is considering the following projects:
Risk Expected Return
High 15%
Average 12
High 11
Low 9
Low 6
Which set of projects would maximize shareholder wealth? Why?