Cannibalization occurs almost always when a new product targets the same audience as an existing one. The buyer simply chooses a more favorable option within one brand basket — and this is a normal market reaction, not a strategic failure. The problem begins when a company has not built this effect into the plan and discovers it ex post facto, from a report on declining margins.
There is a fundamental difference between 'bad' and 'good' cannibalization. Bad — when a new product takes revenue from the old one without increasing the company's overall profit. Good — when a new product takes market share from its own senior sibling, but stops the customer drain to competitors or expands the overall brand market. Apple regularly reduces sales of its older iPhone models with new ones — and does this consciously, because otherwise a buyer with an older model would be taken by Samsung or Xiaomi.
| Type | What happens | Business risk |
|---|---|---|
| Horizontal | A new product in the same price segment draws customers from the old one | High — direct replacement without audience growth |
| Vertical (downsell) | A cheaper version of the product draws customers from the expensive one | Medium — average ticket decreases, but base grows |
| Vertical (upsell) | A premium new product takes part of the audience from the basic line | Low — often beneficial, margin increases |
| Sub-brand | A separate sub-brand of the company competes with the parent brand on the shelf | Depends on the degree of positioning differentiation |
A classic example of how cannibalization kills brands from the inside is the story of General Motors in the middle of the XX century. The company built a lineup of five brands: Chevrolet, Pontiac, Oldsmobile, Buick, Cadillac — each for its own price segment and audience. The scheme worked for decades, until the boundaries between brands blurred in the 1980–90s: Pontiac became similar to Oldsmobile in price and specifications, while Buick competed with itself through the medium models of Cadillac.
The buyer stopped understanding why to pay more for Oldsmobile when a nearly identical Chevrolet was available for less money. The brands did not expand GM's market, but rather bit off pieces of the same pie from each other. The outcome is well known: Oldsmobile was closed in 2004 year, Pontiac — in 2010-th. The lesson is simple: brand architecture should position products for different customer needs, not just different names on the badge.
Most companies assess the effect of cannibalization by eye, only after sales have dropped. This is a mistake that is easy to avoid with a simple calculation at the testing stage. The basic formula looks like this:
If the coefficient is above 50%, the new product mainly reallocates existing demand rather than creating new. Below 20% — it can be said that the new product truly expands the brand's market.
There are business categories where abandoning cannibalization of one's own product means a direct loss of the market. Technological industries update their product lines every year precisely because if the brand itself does not do this, a competitor will — and will take the customer completely, not partially. Auto manufacturers refresh their model lines with the same calculation. Managing cannibalization does not mean avoiding it at any cost, but controlling who benefits from the flow: the brand itself or a foreign company on the neighboring shelf.