Model Myers (1974) Adjusted Present Value: base-case unlevered DCF, interest tax shields with dynamic debt paydown, and financial distress costs.
| Forecast Metric ($ Millions) | Year 1 | Year 2 | Year 3 | Year 4 | Year 5 | Terminal / PV |
|---|
Impact of varying Unlevered Cost of Equity ($r_u$) vs. Terminal Growth ($g_n$) on operating asset value.
Impact of Initial Debt ($D_0$) vs. Corporate Tax Rate ($t_c$) on total tax shield value creation.
Stewart Myers' Adjusted Present Value (1974) is grounded in the foundational corporate finance theorem of value additivity: the value of a business equals the value of its base operating assets plus the net value of any financing side effects:
By uncoupling operating performance from capital structure decisions, APV provides clearer strategic insight into where enterprise value actually originates.
Free cash flows to firm ($FCFF$) are discounted at the unlevered cost of equity ($r_u$), which reflects pure business and operating asset risk without financial gearing:
Unlike WACC, $r_u$ remains constant even when debt levels change dramatically over time.
Because interest expense is tax-deductible, debt financing generates an annual cash tax savings equal to $\text{Interest} \times t_c = D_t \times r_d \times t_c$:
In LBOs with multi-year deleveraging, modeling explicit debt schedules captures exact tax benefits that constant WACC misses.
Excessive leverage increases the likelihood of insolvency. Expected distress costs equal the cumulative default probability multiplied by total bankruptcy losses (direct legal expenses plus indirect franchise impairment):
This prevents unrealistic leverage assumptions and aligns valuation with the empirical trade-off theory of capital structure.
1. In which valuation scenario is the Adjusted Present Value (APV) method mathematically superior to the standard WACC method?
2. What discount rate is used to evaluate the base-case operating cash flows (VU) in an APV model?
3. Under Myers' classical formulation, why are interest tax shields discounted at the cost of debt (rd)?
4. How is Net Equity Value derived from Adjusted Present Value (APV)?
Adjusted Present Value (APV), introduced by Professor Stewart Myers in 1974, values an enterprise by separating total enterprise value into two distinct components: the base-case unlevered value of operating assets (assuming 100% equity financing) plus the net present value of all financing side effects, primarily interest tax shields minus the expected costs of financial distress. APV is especially valuable in Leveraged Buyouts (LBOs), project finance, and debt recapitalizations where leverage changes significantly over time, rendering a constant WACC discount rate inaccurate.
The classical Weighted Average Cost of Capital (WACC) assumes that a company maintains a constant debt-to-equity ratio throughout its forecast horizon. In an LBO, a company initiates with very high debt (e.g. 70%-80% leverage) and aggressively amortizes principal over 3 to 7 years, causing the capital structure and WACC to fluctuate dramatically year-by-year. APV handles changing debt levels effortlessly because operating cash flows are discounted at a constant unlevered cost of equity (r_u), while tax shields are modeled and discounted explicitly each period.
Under the classical Myers (1974) formulation, if debt is maintained at a predetermined fixed dollar level, interest tax shields share the risk of the debt contract and should be discounted at the pre-tax cost of debt (r_d). Under the Miles-Ezzell (1980) or Harris-Pringle formulations, if management continuously rebalances debt to maintain a constant target market leverage ratio, tax shields fluctuate with enterprise asset risk and should be discounted at the unlevered cost of equity (r_u).
APV explicitly subtracts the expected present value of financial distress costs: PV(Distress) = Probability of Default x Expected Loss given Insolvency. While interest tax shields increase firm value as debt rises, higher leverage concurrently inflates default probability and indirect distress costs (customer defection, supplier loss, key employee attrition, legal fees), capturing the realistic trade-off theory of capital structure.
Yes. You can export the full 5-year discrete cash flow forecast, terminal value calculations, interest tax shield amortization schedule, distress adjustments, and dual 5x5 sensitivity matrices as a formula-protected CSV spreadsheet.