Economies of Scope
Economies of scope is the saving you get from making several related products on the same plant, brand, distribution or expertise, rather than running each product line as if it stood alone.
Reach for this when…
- Capacity or a sales team sits idle for large parts of the year between core cycles.
- You're weighing a brand extension and need to know if it genuinely shares a cost driver.
- A new product line looks profitable but you suspect it's being propped up by the core business.
How to run it
- List the resources you already own that sit underused - plant capacity, brand, distribution, sales team, raw material.
- Identify adjacent products or services that could ride on those same resources.
- Test the cost of adding the adjacent line versus running it standalone.
- Launch only where the shared resource genuinely lowers cost, not just because it fits the brand story.
- Track cost per line separately, so the shared model isn't secretly subsidising a loser.
A worked example
Situation. Priya Fernando runs Fernando Estate, a family tea estate in the low country near Elpitiya, Galle District, Sri Lanka.
Applied. Her tea factory and export contacts sat idle for long stretches between the two annual plucking peaks, and cash flow dried up in between. She used the same drying floors, sorting staff and export contacts to launch a cinnamon processing line grown on unused estate margins, building nothing new.
Result. The cinnamon line reached profitability within a year, because it carried almost none of its own fixed costs, riding entirely on the estate's existing resources.
The catch
Economies of scope tempts you to bolt on any product that superficially fits the brand - the saving only exists if the shared resource is a genuine cost driver, not a marketing story. It also hides cross-subsidy: a shared line can look profitable while quietly being propped up by the core business's costs it never actually carries.
If you can't name the specific shared resource cutting the cost, you don't have economies of scope, you have brand extension.
Origin: Panzar & Willig (1981)