Abstract:The capital asset pricing model (CAPM) receives both criticism and widespread adoption by practitioners and academics as the weighted average cost of capital (WACC) equity component. This study introduces two new costs of equity measures to address CAPM criticisms and provide new perspective on WACC estimates. The firm-based measure focuses on firm-investor cash flows while the market-based measure focuses solely on actual market returns. This study applies its firm and market-based WACC measures, along with the traditional CAPM-based WACC measure, to a broad sector-based cross section from 1972 to 2015.
PUBLIC INTEREST STATEMENTThis work introduces two new equity finance measures to provide perspective on the troublesome equity component of a firm's overall cost of capital. The results confirm that the common equity finance measure, CAPM, is a fair measure for use in computing the overall cost of capital. The results also show that firminvestor cash flows differ significantly from CAPM predictions and actual market returns. In particular, the results suggest that market participants play a significant role alongside firms in actual market returns. Other results of this study provide new perspective on why small firms tend to have higher returns than large firms and raises questions on the role of firm cash flow generation in actual market returns. Finally, the comprehensive sector-based cross-sectional data can serve as a reference for practitioners in their cost of capital estimations.