... cost of capital Keywords Weighted Average Cost of Capital, WACC, firm valuation, capital budgeting, equity cost of capital JEL codes D61, G31, H43 ii A Note on the Weighted Average Cost of Capital ... 11 The WACC calculations are made estimating the debt and equity participation in the total value of the firm for each period and calculating the contribution of each to the WACC after taxes As ... inflation is not constant, WACC changes, but due to the inflationary component and not due to the capital structure In this situation, WACC is the cost of the assets, KA, or the cost of the firm,...