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MENTAL MODEL · M3630

Economies of Scope

Economies of Scope
BusinessHigh supportMicroeconomics
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Updated 2026-07-31

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INTRODUCTION

English translation pending.

CORE DEFINITION

A concept from industrial economics and strategy, closely associated with the analysis of multi-product firms. Its core proposition is that when two or more products draw on the same inputs, such as brand, distribution channel, research capability, or supply chain, the joint cost is lower than the sum of the stand-alone costs. The key constraint is that the sharing must be real and substantial; the concept explains related diversification rather than diversification as such, and the savings are often offset by the coordination overhead that a wider product range creates.

SCAFFOLDING EFFECT

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- Diversification test: name the specific shared asset before approving a new product line, and reject the proposal if you cannot. - Reuse audit: check whether brand, channel, or technology is genuinely leveraged or merely nominally common. - Complexity cost: weigh the coordination overhead of a wider range against the savings from sharing.

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Sharing works because the cost of an asset such as a brand or a distribution network is largely fixed, so spreading it over additional products lowers the average cost per product without requiring additional investment. The marginal product therefore carries almost none of the shared cost, and total cost falls below the sum of separate production. The effect differs from economies of scale, which come from producing more of the same item; here the reduction comes from producing different items through one set of assets.

MINIMUM ACTION

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Source support: Explicit

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    en.wikipedia.orghttps://en.wikipedia.org/wiki/Economies_of_scopeZH · Explicit
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