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MENTAL MODEL · M0483

Ustinov Effect

Ustinov Effect
BehaviormediumPsychology
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Version 1.0.0 · Updated 2026-07-30

CORE DEFINITION

In negotiation, deliberately displaying clumsy, humorous, or harmless traits (like Peter Ustinov's performance style) to disarm the other party's defensiveness, thereby achieving goals at critical moments.

SCAFFOLDING EFFECT

psychology

Reduce cognitive load

The tactical value of showing weakness. In intense business negotiations, appearing overly shrewd and aggressive often provokes defensiveness and stubbornness. Moderately displaying 'harmlessness' or 'slowness' can make the other party lower their guard and reveal more information.

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In negotiation, deliberately displaying clumsiness, humor, or harmlessness (like actor Peter Ustinov's style) can lower the other party's defenses, lull them into letting their guard down, and expose their hand. The mechanism is 'showing weakness for information'.

MINIMUM ACTION

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Source support: Explicit

  • link
    en.wikipedia.orghttps://en.wikipedia.org/wiki/Peter_UstinovZH · Explicit
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