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The double jeopardy pattern in brands

An empirical pattern in which smaller brands tend to have fewer buyers and lower loyalty measures at the same time.

On this page

Theory · Marketing

Core concepts

  • Penetration: the reach of buyers within a period
  • Loyalty: behavioral measures such as repeat purchase
  • Benchmarking: interpret measures in relation to brand size

Application

Compare market size and buyer numbers before judging a brand only by its repeat purchase rate.

Limitations and jurisdiction

Examine the market, observation period and purchase cycle. The pattern does not imply that individual retention activities are pointless.

Editorial perspectives

  • New reach: build a broader buyer base.
  • Existing relationships: measure the incremental effect and cost of retention separately.

Sources

Ehrenberg-Bass Institute · Institute research explanation

The Double Jeopardy Law in B2B shows the way to grow

Context: International reference; verify the application environment

Source checked: 2026-10-07

Independent editorial summary and source link; the original text is not republished.

Related personas

    Performance marketer

    Translation status

    Editorial English translation of the Korean edition. No professional translation or occupational expert review has been completed. Translation does not change the source jurisdiction.

    Translation prepared: 2026-10-08 · Source fingerprint: kb-5c306abeff5ea1a0

    Korean source

    API

    JSON document