Use precise, not round, numbers
A specific figure (e.g. 9,850) anchors more credibly than a round one (10,000).
Key takeaways
- What it is: A specific figure (e.g. 9,850) anchors more credibly than a round one (10,000).
- Why it works: Precise numbers signal that real analysis went into them, so the other side infers you’re informed and adjusts in smaller increments — keeping the final figure closer to your anchor. Round numbers read as approximations and invite large, round counter-moves.
- Evidence: Backed by observational / correlational evidence.
- Avoid: Rounding for "cleanliness," which signals approximation and invites the other side to round aggressively against you.
Why it works
Precise numbers signal that real analysis went into them, so the other side infers you’re informed and adjusts in smaller increments — keeping the final figure closer to your anchor. Round numbers read as approximations and invite large, round counter-moves.
How to do it
- 1Open with a specific, non-round figure backed by your calculation.
- 2Avoid suspiciously precise but baseless numbers — the rationale still has to exist.
- 3Hold the precision through your concessions rather than collapsing to round numbers.
What the evidence says
ObservationalStudies on precise versus round anchors find precise first offers can lead to smaller counter-adjustments and outcomes nearer the anchor.
Honest caveat: The effect is modest and context-dependent; precision helps only when the number remains plausible.
Common mistake
Rounding for "cleanliness," which signals approximation and invites the other side to round aggressively against you.
IX Coach helps you build and defend a precise, calculated number rather than a round guess, so your anchor reads as analysis.
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