Wtd Avg Cost of Capital (WACC) Term category: Finance/Accounting In 10 words or less: The cost associated with a firm's capital structure.
Definition: The weighted average cost of capital is the cost associated with a firm's capital structure. It's characterized by the following equation:
WACC = (E/V * Re) + (D/V * Rd)(1 - t)
E = Market value of the firm's equity D = Market value of the firm's debt V = Market value of the firm (E + D) Re = Cost of equity Rd = Cost of debt T = corporate tax rate (typically 35%)
WACC's typically fall in the 6% to 15% range.
More Details: Companies are financed by a combination of debt and equity. They then invest this money by putting it to use, whether it be in purchasing inventory or buying new plants. There is a cost of using this capital (money isn't free) so they try to earn returns in excess of this cost. The cost is referred to as the weighted average cost of capital (WACC).
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Capital Asset Pricing Model The CAPM is commonly used to calculate the cost of equity for a firm. You can then plug this number into the WACC equation to come up with the firm's weighted average cost of capital. Weighted Average Cost of Capital This page gives a quick explanation of how to compute the WACC.
Cost of Capital by Sector This page gives detailed data regarding the WACC's by sector of the economy