Putting all this information together, what is your estimate of MMM’s WACC? How confident are you in this estimate? Explain your answer.

Access the Thomson ONE problems though the ThomsonNOW Web site. Use the Thomson

ONE—Business School Edition online database to work this chapter’s questions.

Calculating 3M’s Cost of Capital In this chapter we described how to estimate a company’s WACC, which is the weighted average of its costs of debt, preferred stock, and common equity. Most of the data we need to do this can be found in Thomson One. Here, we walk through the steps used to calculate Minnesota Mining & Manufacturing’s (MMM) WACC.