Customer Acquisition Cost — Failure Patterns

Customer Acquisition Cost (CAC) determines whether growth is economically viable. Failures occur when CAC is assumed stable under changing market conditions.

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Variable Identity

• Variable Key: customer-acquisition-cost
• Type: Cost Efficiency Variable
• Domain: Growth Economics

What This Variable Captures

CAC measures the cost required to acquire a new customer across channels. It is sensitive to competition, saturation, fatigue, and attribution.

Mechanism Map (Causal Drivers)

• Saturation → rising marginal acquisition cost
• Decay → gradual efficiency loss over time
• Lag Effect → early-stage distortion
• Misattribution → incorrect signal interpretation

Failure Structure

Temporary Efficiency → Assumed Stability → Scaling Commitment → Cost Escalation → Margin Collapse

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Filter by Mechanism

All Saturation Decay Lag Effect Misattribution

Cases (Auto Matched)

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Decision Rules

• Do not assume CAC stability without multi-period validation
• Stress-test CAC under scale
• Define rollback thresholds before scaling
• Model saturation before committing spend

Simulation Interface (Future Layer)

• If CAC increases → identify driver (saturation / fatigue / competition)
• Test CAC under different spend levels
• Evaluate reversibility before scaling