Economies of Scale vs Economies of Scope

Economies of scale occur when long-run average total cost decreases as output increases.

This happens due to factors like specialization, bulk purchasing, or more efficient technology as the firm expands. It leads to lower per-unit costs and gives larger firms a cost advantage in the market.

Economies of scope exist when it is cheaper to produce several products together than to produce each separately.

They arise from sharing inputs, facilities, or expertise across product lines (e.g., a dairy making milk and cheese). Economies of scope are about variety of products, whereas economies of scale are about volume of a single product.