Decoy effect

Rarity: Common

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At a glance

Class

Notion

Domain

Science and technology

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What Wikipedia says

In marketing, the decoy effect (or attraction effect or asymmetric dominance effect) is a phenomenon in consumer decision-making in which the inclusion of unattractive third option can change the perceived preference between the other two.

Excerpt from the Wikipedia article “Decoy effect”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Christian Gidlöf, CC BY-SA 3.0, via Wikimedia Commons.