The Psychology of Persuasion

INFLUENCE

Six Principles · Psychological Triggers · Defense Playbook

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Principle01

Reciprocity

"Why are freebies so hard to refuse?"

Obligation to repay favors is a deep social rule. The debt can outweigh how we feel about the giver.

Principle02

Commitment & Consistency

"Why do we stick to bad decisions?"

Once we take a stand, internal and external pressure push us to stay consistent—we avoid looking fickle.

Principle03

Social Proof

"Why does canned laughter work?"

In uncertainty, we look to others as a shortcut to ‘correct’ behavior—easy to exploit.

Principle04

Liking

"Why can't you refuse that salesperson?"

We comply more with people we like. Attractiveness, similarity, flattery, familiarity all boost liking.

Principle05

Authority

"Why do we obey blindly?"

Titles, uniforms, and status symbols trigger automatic compliance.

Principle06

Scarcity

"Why does “last 3 days” make you rush?"

Loss looms larger than gain. Scarcity and deadlines trigger urgency and overvaluation.

[ Principle V : Authority ]
Dr. Robert Cialdini
[ Principle I : Reciprocity ]
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Robert Cialdini

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The Psychology
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