THE IDEA

What makes adoption take off?

Adoption can come from independent discovery and from seeing others adopt.

Inside this model

The Bass toy update is ΔF=(p+qF)(1−F), where F is cumulative share, p=innovation/100 and q=imitation/100. Starting at zero, the chart runs 30 periods.

Out in the world

A practical use

Explore how word of mouth changes the shape of a new product's rollout.

WHERE IT BREAKS

A useful lens. Not a universal law.

  • A fixed total market and constant coefficients are strong assumptions; the curve alone is not a sales forecast.

Associated thinkers

Further reading

Explore the original research or the teaching reference behind this experiment.

Frank Bass — A New Product Growth Model for Consumer Durables ↗