MENTAL MODEL · M1791

Credence Goods

BusinessHigh supportInformation Economics

Included

Version 1.0.0 · Updated 2026-07-30

CORE DEFINITION

Goods whose quality is difficult for consumers to judge even after purchase and consumption. Examples: medical surgery, car repair, educational consulting. Because the seller has a huge information advantage.

SCAFFOLDING EFFECT

psychology

Reduce cognitive load

- Trust building: If you sell credence goods, the marketing focus is not on "performance" but on "endorsement" and "transparency". Third-party verification mechanisms (such as reviews, certifications) must be established to eliminate customer fear.

anchor

Anchor fast decisions

Classified by Darby and Karni in 1973: credence goods are those whose quality is difficult for consumers to judge even after consumption (e.g., whether surgery is necessary, whether repair is overcharged), because the seller has a professional information advantage. Sellers have an incentive to "over-serve" for profit, leading to market failure, requiring third-party verification and trust mechanisms to remedy.

MINIMUM ACTION

In progress 0/4

Practice this model in one real situation:

Identify whether what you sell/buy is a credence good (still difficult to evaluate after consumption)
Sellers should proactively be transparent, provide qualifications and third-party endorsements
Buyers should use reviews, certifications, fixed pricing (to avoid inflated itemized billing) to reduce exploitation
Establish long-term reputation to constrain short-term deception.

Check to track your progress (stored locally)

Learning progress0%

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Source support: Explicit

link
en.wikipedia.orghttps://en.wikipedia.org/wiki/SEC_classification_of_goods_and_servicesZH · Explicit
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