Thinking, Fast and Slow · Daniel Kahneman

The halo effect examples

Curated by · reviewed 2026-06-01

The halo effect is letting one good trait spill over into everything else — so if someone is attractive, confident, or successful in one area, we assume they're better in unrelated ones too. Examples:

What is the halo effect? Read the full idea →

5 examples of the halo effect

  1. Good-looking = competent

    In studies and in life, attractive people are rated as smarter, kinder, and more trustworthy — none of which their looks actually predict.

  2. A polished website

    A clean, beautiful site makes people assume the product is better and the company more reliable, before they've judged the thing itself.

  3. The confident speaker

    Someone who speaks smoothly is assumed to know what they're talking about, even when the content is thin.

  4. A celebrity endorsement

    We transfer our liking of the famous face onto the cereal, the watch, or the candidate they're holding.

  5. The star employee's new idea

    Because their last project shone, their next proposal gets waved through with far less scrutiny than a newcomer's would.

How to spot it in yourself

You'll forget most of this by next week.

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