In 1974, psychologists Amos Tversky and Daniel Kahneman published a paper that changed how we understand human decision-making. Among their findings was a phenomenon they called anchoring: when people make numerical estimates or decisions, they rely too heavily on the first piece of numerical information they encounter — the anchor — even when that number is arbitrary, irrelevant, or obviously random. In one famous experiment, participants who spun a wheel that landed on 65 subsequently estimated a higher percentage of African countries in the UN than participants whose wheel landed on 10. The wheel number had no logical connection to the question. It influenced the answer anyway. The financial implications of this cognitive quirk are significant, pervasive, and largely invisible to the people experiencing them.
How Anchoring Works in Financial Contexts
Financial anchoring works because human brains use reference points to evaluate whether a given number is high, low, or reasonable. When no objective benchmark exists, the brain uses whatever number is most recently or prominently encountered as a proxy benchmark — even when that number was set by someone with the explicit intention of influencing your perception. Retail pricing anchors are the most visible example: a shirt marked down from $180 to $90 is evaluated as a good deal because $90 is assessed relative to the $180 anchor, not relative to the intrinsic value of the shirt or comparable market prices. The $180 original price may have been set precisely to make $90 feel like a bargain rather than a fair price. Your brain processes the $90 as “half of the anchor” rather than “what am I actually getting for $90.”
Salary Negotiation: The Anchor That Determines Your Lifetime Earnings
Anchoring has its most financially consequential application in salary negotiation. Research on salary negotiations consistently demonstrates that the first number offered in a negotiation — whether by the employer or the candidate — creates an anchor that heavily influences the final settled salary. Employers who open with a low anchor push the negotiated outcome downward. Candidates who name their salary expectation first, confidently and specifically, set a higher anchor that tends to pull the employer’s counter-offer upward. Studies by researchers including Adam Galinsky have found that the party who names a number first in salary negotiations tends to get better outcomes, because they set the anchor rather than respond to one set against their interests.
The compounding effect of salary anchoring over a career is enormous. A $5,000 difference in starting salary — an anchor differential that might seem small — compounds across annual raises, future job offer negotiations that reference current salary, and retirement contributions that are often calculated as percentages of salary. Over a 35-year career, a $5,000 starting salary difference, assuming 3% annual raises, produces a cumulative earnings difference of over $330,000. Understanding that the anchor in a salary negotiation is set deliberately and strategically by employers who do this daily is the first step toward countering it effectively.
Real Estate: An Anchoring Minefield
Real estate transactions are particularly susceptible to anchoring because the stakes are high, the market is opaque, and the anchor — the listed asking price — is set by the seller with full knowledge of its psychological function. A home listed at $595,000 anchors buyers to evaluating whether the home is worth approximately $595,000, rather than approaching the valuation from first principles based on comparable sales, cost to replicate, and market conditions. Buyers who focus primarily on negotiating a percentage discount from the asking price are playing on the seller’s terms — the asking price is an anchor designed to make any number below it seem like a deal, regardless of whether the asking price itself reflects the property’s actual market value.
The same anchoring dynamic operates when homeowners set their own asking price: they typically anchor to what they paid for the property, what their neighbours listed at, or what their renovation cost — none of which necessarily reflects current market value. Buyers who anchor to the purchase price they paid years ago when evaluating whether to sell are making a sunk cost error compounded by anchoring, letting an irrelevant past number distort a present decision.
Investing and the Cost Basis Anchor
In investing, the most costly anchoring effect involves the purchase price of existing holdings — the cost basis. When an investment declines, investors anchor to what they paid for it and evaluate the current price as “down X%” rather than asking whether the investment is worth holding at its current price independent of purchase history. This cost basis anchoring is the psychological root of the sunk cost fallacy discussed elsewhere: the purchase price anchors the investor’s evaluation of the investment’s current value, making the decline feel like a loss that can only be “recovered” by the price returning to the anchor, rather than a present reality to be evaluated on its current merits.
Conversely, when an investment rises significantly above purchase price, investors often become anchored to their original entry point in a different way — becoming reluctant to add to a position at “higher” prices, even when the investment’s future prospects are unchanged or improved. The purchase price becomes a psychological ceiling that influences behaviour in ways that have no analytical basis. Portfolio management that ignores cost basis entirely — evaluating each holding on its current forward-looking merits regardless of entry price — produces better outcomes than management distorted by cost basis anchoring, but requires deliberate discipline to execute.
Practical Countermeasures
Several practical approaches reduce the influence of anchoring on financial decisions. In salary negotiations, research the actual market rate for your role thoroughly before entering any negotiation — tools like Glassdoor, Levels.fyi for technology roles, and industry salary surveys provide data that replaces the employer’s anchor with a market-based reference point. In major purchases, determine your own valuation before seeing the asking price wherever possible — for a car, calculate the private party value from Kelley Blue Book before visiting a dealership; for a home, review comparable sales before seeing the listing price.
In investing, practising the “clean slate” mental exercise — asking what you would do with this investment if you were encountering it for the first time with the current price and no purchase history — counteracts cost basis anchoring by stripping away the irrelevant numerical anchor and forcing a forward-looking assessment. Awareness of anchoring is necessary but not sufficient for countering it — the research shows that even people who know about anchoring remain influenced by anchors in subsequent decisions. The effective countermeasure is to replace the anchor with a better-researched reference point before it can take hold, not simply to remind yourself that the anchor exists and try to mentally discount it.
Anchoring in Everyday Financial Decisions
Beyond major financial events like salary negotiations and property purchases, anchoring affects smaller everyday financial decisions in ways that add up significantly over time. The “suggested tip” percentages displayed on restaurant payment terminals — often starting at 20%, 25%, or 30% — anchor customers to a higher tipping range than might otherwise occur to them, producing systematically higher tips than when customers calculate the amount themselves without a suggested anchor. Credit card minimum payment displays — which show the minimum payment prominently alongside the full balance — anchor many cardholders to the minimum as the “normal” payment, rather than the full balance, contributing to persistent revolving debt that serves the card issuer’s interests rather than the cardholder’s. Introductory subscription pricing — $1 for the first three months before reverting to $15 per month — anchors customers to the $1 price psychologically, making the $15 ongoing rate feel like a modest increase rather than the actual cost being evaluated from scratch.
The Key Takeaway
Anchoring bias is pervasive in financial contexts because financial decisions inherently involve numbers, and numbers invite comparison — comparison that anchors hijack before more objective analysis can establish a genuine benchmark. The defence isn’t to try harder to think rationally in the moment of anchoring, which research suggests is largely ineffective. The defence is to establish your own informed reference points before encountering the anchor: know the market rate before negotiating salary, know comparable sales before seeing a listing price, know what you’d willingly pay for something at full price before seeing a discount. The anchor is most powerful when it’s the first number you encounter; it loses much of its influence when it arrives after you’ve already formed an independent view. Financial decision-making that systematically establishes independent benchmarks before encountering the other side’s opening number produces better outcomes across every domain where anchoring operates.
The broader lesson from anchoring research is that the framing of a financial decision — the context in which numbers are presented, the order in which they appear, and the reference points that surround them — has a measurable and significant effect on the choices people make, independent of the underlying merits of those choices. Recognising that the financial industry understands and deliberately uses this dynamic is not cynicism; it’s an accurate description of how products are designed, prices are presented, and negotiations are structured. Protecting yourself requires knowing not just what you want but what a reasonable price or outcome looks like before you enter any financial conversation — because once you’re in it, the anchor has already been set.
