Ackerman Model
Version 1.0.0 · Updated 2026-07-30
CORE DEFINITION
A specific bargaining algorithm: 1. Set your target price; 2. First offer is 65% of the target; 3. If rejected, increase to 85%; 4. If rejected again, increase to 95%; 5. Final offer is 100%, with a non-integer precise number (e.g., $37.50).
SCAFFOLDING EFFECT
Reduce cognitive load
Price anchoring. Through precise non-integers and decreasing increments, convey a psychological hint that you have exhausted your resources and calculated to the extreme, forcing the other party to accept your bottom line.
Anchor fast decisions
A structured negotiation concession method: the buyer first offers an extremely low price, then gradually concedes in decreasing increments, combined with strategies like 'no authority' to force out the other party's bottom price.
MINIMUM ACTION
In progress 0/4Practice this model in one real situation:
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Source support: Explicit
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