What are the limitations of the Gordon growth terminal value?

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AcadiFi · Accepted Answer

The Gordon growth terminal value has four principal limitations that cause frustrating instability in DCF analyses.

**1. Extreme sensitivity to growth rate assumption.** TV = FCFF_{n+1} / (WACC − g). A 0.5% change in g — from 2.0% to 2.5% — when WACC is 8% changes the denominator from 6.0% to 5.5%, a 9% rise in TV. Because TV is 70%+ of total DCF value, a 0.5% input change can swing equity value by 6%+.

**2. g cannot exceed WACC.** The formula explodes at g = WACC. Practitioners constrain g ≤ long-run nominal GDP growth (2-4% in developed markets) since no firm can outgrow the overall economy forever.

**3. Constant-growth assumption rarely matches reality.** Firms experience lumpy cash flows, cycles, and secular shifts. Forcing steady growth produces artificially smooth terminal flows.

**4. Consistency between g, reinvestment, and ROIC is often violated.** Retention ratio = g / ROIC implies the firm's reinvestment rate. If g = 3% and ROIC = 12%, retention = 25% and payout = 75%. If the current firm retains 60% and earns 10% ROIC, g should be 6% — not the 3% used in the TV formula. Inconsistent assumptions understate TV.

Mitigation: (1) sensitivity test g and WACC with ±1% bands. (2) Cross-check implied exit multiple (TV / Terminal EBITDA) against peers. (3) Reconcile g with ROIC and reinvestment rate. (4) Present a range, not a point estimate. (5) Use two-stage or H-models to avoid the single-parameter trap.

What are the limitations of the Gordon growth terminal value?

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