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The Knowledge Project with Shane Parrish cover image

#122 Robert Cialdini - The Principles of Persuasion

The Knowledge Project with Shane Parrish

NOTE

5. Scarcity

The scarcity principle asserts that people desire items more when they are perceived as rare or limited in availability. Items that are dwindling in stock tend to gain more appeal due to the psychological trigger of fear of missing out (FOMO). This fear drives individuals to pursue scarce items, motivated by the anxiety of potentially not being able to acquire them. Scarcity increases the desirability of an item, highlighting a fundamental human tendency to value what is less available.

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