Compounding vs Linear Commerce
Compounding adds returns to returns — exponential curves in the ideal case. Linear models add output in proportion to input — common in mature retail and service flows without viral loops or reinvestment flywheels.
Key Differences
| Dimension | Compounding | Linear Commerce |
|---|---|---|
| Curve shape | Convex over long horizons | Roughly straight without reinvention |
| Requirements | Reinvestment, retention, time | Capacity and hours |
| Risk | Interrupting the curve collapses the magic | Margin compression as you scale |
| Measurement | Cohort retention, reinvestment rate | Throughput, staffing, square footage |
| Strategy | Build loops | Optimise unit operations |
When to use Compounding
- When retention and reinvestment truly improve the product
- When learning or capital can stack over years
When to use Linear Commerce
- When growth is fundamentally capacity-limited
- When short-term cash extraction matters more than tails
Frequently Asked Questions
Compounding vs linear growth — which should a startup want?
Most want compounding in at least one engine (product, distribution, data). Many also contain linear components — headcount, support, logistics. The strategic question is whether the convex part is real or a pitch deck fantasy.
What breaks compounding?
Churn, dilution of focus, rising CAC, quality collapse, and premature optimisation of short-term revenue over loop health.