Anchoring (negotiation)
Also known as: First-offer effect
Whoever names a number first usually shapes the deal.
What it means
Anchoring in negotiation is the applied case of the anchoring bias: the first offer placed on the table acts as a reference point that pulls the final agreement toward it, even when that offer is aggressive or arbitrary. The mechanism is the same selective accessibility that drives anchoring generally — the opening number directs attention to information consistent with it, reshaping both sides' sense of what counts as a reasonable outcome. Research finds that aggressive but not absurd first offers tend to yield better deals for the proposer, which is why advice to 'let the other side go first' is often mistaken. Defenses are well documented: prepare your own target and reservation point in advance so you are not anchored, make an informed counter-offer that re-anchors rather than merely resisting, and focus on your alternatives. It matters across salary talks, sales, real estate, mergers, and dispute settlements, where the framing power of the opening figure routinely outweighs the substance of later haggling.
Why the first number sticks
Two mechanisms compete to explain the pull. Anchor-and-adjust says you start from the number on the table and adjust toward your own view, stopping too early. Selective accessibility says the opening figure instead makes you retrieve reasons it might be right: shown a high listing price, you start noticing the good schools and the new roof. Two preregistered experiments in the 2025 synthesis (N = 2,121) tested eight candidate mechanisms and found mediation for six, selective accessibility and insufficient adjustment among them; a relative weight analysis put those two first for predicting first and final counteroffers. But the direction of that evidence is unresolved. In both experiments the a-paths ran backwards: higher first offers led negotiators to report more sufficient adjustment, not less, and less accessible information supporting the anchor. The authors can only speculate about why, and they rule out measurement noise, which would logically produce null effects rather than reversed ones. The pull is real. The account of how it works is not settled, and neither mechanism has been eliminated in favour of the other.
What the evidence shows
Petrowsky and colleagues pooled 374 effects from 90 studies (N = 16,334) and found a general first-mover advantage (g = 0.42), a link between the size of the first offer and the final agreement (r = 0.62), and an advantage for ambitious over moderate openings (g = 1.14). The pooled estimates are precise, but precision is not stability: heterogeneity across the three agreement-value effect families runs from I-squared = 84 to 97 percent, and the credibility intervals for agreement value include zero. In some settings the advantage shrinks to nothing or runs the other way, which is why the paper's own abstract opens by noting that recent findings have challenged the robustness of the first-mover advantage. Treat the averages as a tendency, not a rate you can bank. An earlier and much smaller meta-analysis (19 effects) found a correlation near .5 between the anchor and the outcome, falling to about .37 for negotiators with relevant professional experience. Experience blunts the effect without removing it. Field data agrees: across 26 million eBay negotiations, sale prices tracked buyers' opening offers linearly.
What an ambitious anchor costs
Ambition has a price. The meta-analysis finds that ambitious first offers produce more impasses (g = -0.42) and leave recipients feeling worse about the deal (g = -0.40), and the preregistered experiments traced both to anger. That is a real mediation result, not a contest won: selective accessibility and insufficient adjustment were excluded by preregistration from the models for deal likelihood and subjective value, so they were never tested against anger on those outcomes. A number that lands as an insult ends conversations. The eBay data maps the trade-off. Offers between 100 and 90 percent of the asking price carry the lowest impasse risk; from 90 down to roughly 20 percent the risk climbs steadily; below roughly 20 percent the curve saturates near a 95 percent impasse rate — the extra ambition is no longer what is costing you the deal, because you have already lost it. Price, meanwhile, moves linearly with the offer across the whole range (R-squared = .997). Weighting price gain and impasse risk equally, the authors put the optimum at 80 percent of the seller's list price, with category-specific optima ranging from 33 to 95 percent. Anyone reporting only the price gain is reporting half the result.
When moving first backfires
Always open first is as wrong as never open first. A first offer does two things at once: it drops an anchor and it leaks your priorities. In single-issue price haggling there is little to leak, so the anchor dominates. In multi-issue deals, an opening package tells the other side what you value and invites them to exploit it. That is the information-anchoring model, and the 2025 synthesis confirms the boundary: as issues multiply, first-offer effects shrink and the mechanisms change. Information asymmetry adds a second failure mode. An informed party can anchor itself on what it knows and concede more than it needed to.
Using it in practice
The eBay corpus gives the one number this literature has actually earned: weighting price gain and impasse risk equally, 80 percent of the seller's list price was the balance point, with the optimum running from 33 to 95 percent depending on the category. That figure belongs to that market, and the spread is the lesson — the right level of ambition is a property of the setting, so find yours before you find your number. What breaks a deal is not the recipient's arithmetic but their anger: that is the mechanism the experiments identified behind both impasse and dissatisfaction. It follows that a stated reason for an ambitious offer should help, since it gives the number a source other than contempt — though that is an inference from the anger finding, not a tested result, and none of the work cited here checks whether justifying an offer reduces the recipient's anger. Then ask whether the deal is one issue or many. On a single price, open. On a complex package, opening leaks more than it anchors.
Examples
List a house high and offers cluster higher; the opening ask reframes what 'reasonable' means.
Name your salary figure first and the whole range moves with it; candidates who open high tend to close high, which is why 'let them go first' is so often bad advice.
A freelancer quotes eight thousand for work she would have taken five for; the client haggles her down to six and a half, and leaves the call convinced he won.
A plaintiff's lawyer opens at a demand far above expected damages; through the mediation the insurer's adjuster keeps generating reasons the injury might really be that severe, and finishes the day reading her own file as more dangerous than she did that morning.
A supplier opens contract talks at a unit price well above the buyer's budgeted figure. The procurement team spends the round trading volume tiers and payment terms around that price, and signs above the budget it set before the meeting.
First described in Applied anchoring; Galinsky & Mussweiler (2001).
Key references
- Petrowsky, H. M., Boecker, L., Escher, Y. A., Frech, M.-L., Friese, M., Galinsky, A. D., Gunia, B., Lee, A. J., Schaerer, M., Schweinsberg, M., Soliman, M., Swaab, R., Troll, E. S., Weber, M., & Loschelder, D. D. (2025). The power and peril of first offers in negotiations: A conceptual, meta-analytic, and experimental synthesis. Organizational Behavior and Human Decision Processes, 191, 104448. doi.org/10.1016/j.obhdp.2025.104448
- Schweinsberg, M., Petrowsky, H. M., Funk, B., & Loschelder, D. D. (2023). Understanding the first-offer conundrum: How buyer offers impact sale price and impasse risk in 26 million eBay negotiations. Proceedings of the National Academy of Sciences, 120(32), e2218582120. doi.org/10.1073/pnas.2218582120
- Maaravi, Y., & Levy, A. (2017). When your anchor sinks your boat: Information asymmetry in distributive negotiations and the disadvantage of making the first offer. Judgment and Decision Making, 12(5), 420-429. doi.org/10.1017/S193029750000646X
- Loschelder, D. D., Trotschel, R., Swaab, R. I., Friese, M., & Galinsky, A. D. (2016). The information-anchoring model of first offers: When moving first helps versus hurts negotiators. Journal of Applied Psychology, 101(7), 995-1012. doi.org/10.1037/apl0000096
- Orr, D., & Guthrie, C. (2006). Anchoring, information, expertise, and negotiation: New insights from meta-analysis. Ohio State Journal on Dispute Resolution, 21(3), 597-628. scholarship.law.vanderbilt.edu/faculty-publications/826/
- Galinsky, A. D., & Mussweiler, T. (2001). First offers as anchors: The role of perspective-taking and negotiator focus. Journal of Personality and Social Psychology, 81(4), 657-669. doi.org/10.1037/0022-3514.81.4.657