Set an ambitious, defensible anchor

Aim high enough to move the range, but keep a rationale so it isn’t dismissed.

Why it works

A more extreme anchor pulls the final outcome further in your favor because of insufficient adjustment — but an anchor with no justification reads as a non-serious bluff and gets rejected outright, resetting the negotiation. The rationale is what keeps an ambitious number inside the bargaining zone.

How to do it

1. Calculate your ideal target, then open beyond it with room to concede.
2. Attach an explicit justification (comparables, costs, value delivered).
3. Watch their reaction: a flinch means the anchor landed; instant dismissal means it overshot credibility.

Evidence

Consistent with anchoring research showing larger anchors produce larger biasing effects, and with negotiation findings on ambitious-but-justified opening positions. Strack and Mussweiler (1997) traced the effect to selective accessibility — an extreme anchor primes anchor-consistent evidence — explaining why a defensible rationale amplifies rather than weakens the pull. (observational)

Beyond a credibility threshold an extreme anchor backfires; the effect depends on the number being defensible, not just big.

Sources

• Strack, F., & Mussweiler, T. (1997). Explaining the enigmatic anchoring effect: Mechanisms of selective accessibility. Journal of Personality and Social Psychology, 73(3), 437-446.
• Mason, M. F., Lee, A. J., Wiley, E. A., & Ames, D. R. (2013). Precise offers are potent anchors: Conciliatory counteroffers and attributions of knowledge in negotiations. Journal of Experimental Social Psychology, 49(4), 759-763.

Common mistake

Anchoring high with no rationale, so it’s dismissed as a bluff and you lose the anchoring advantage entirely.