Anchoring Effect
Just like an anchor dropped in the ocean, your mind gets tied down to the very first number it hears.
Definition The anchoring effect is a cognitive bias where people rely too heavily on the first piece of information or number they encounter when making decisions, struggling to adjust away from that initial benchmark. Just as a ship stays tethered near where its anchor was dropped, our judgment stays locked to that opening number.
Is Buying a $100 Shirt for $30 Truly a Bargain?
You have probably seen a shirt in a store with the original price tag of $100 crossed out in red and marked 'Special Sale: $30.' In that moment, we feel thrilled, thinking, 'I just saved $70!'
But what if that shirt was only worth $30 to begin with? Even if you would not have bought it at a regular price of $30, seeing that initial '$100' dropped an anchor in your mind. This tendency for the first piece of information to dictate all subsequent judgments is called the anchoring effect.
The same thing happens when negotiating used goods. If a seller opens with a high asking price, even if the buyer negotiates it down, the final deal usually settles near that initial quote. That first price has already become the mental baseline.
Anchors Work Even with Totally Random Numbers
What is even more surprising is that an anchor can influence you even when the number has zero connection to the decision. Psychologists Daniel Kahneman and Amos Tversky famously had participants spin a wheel of fortune marked with numbers from 1 to 100.
After spinning, participants were asked to estimate the percentage of African nations in the United Nations. Those who spun a 10 guessed an average of 25%, while those who spun a 65 guessed an average of 45%. Even though the numbers were purely random, people's brains unconsciously used that number as a reference point to adjust their estimates.
Our brains are wired to take shortcuts rather than calculate every piece of information from scratch. The less familiar we are with the situation, the harder we cling to the very first number that pops up.
Going Deeper: How to Break Free from the Anchor
Strictly speaking, the anchoring effect does not happen because people are foolish. It is a natural byproduct of mental shortcutsโknown as 'heuristics'โthat our brains use to conserve energy in a complex world.
Setting a reference point and making small adjustments up or down is actually quite efficient in daily life. The trouble arises when that initial anchor is inaccurate or planted deliberately to manipulate you. Simply telling yourself to 'be careful' is not enough to escape its pull.
The most effective defense is to set your own objective baseline before hearing the other person's opening number. Actively challenging the anchor by asking, 'If their number is completely wrong, what is this actually worth?' helps cut the anchor line before it drags your thinking down.
๐ค Common misconceptions
Experts who are great with numbers and data are immune to the anchoring effect.
Even real estate pros and mathematicians struggle to avoid the anchoring effect. Because the brain latches onto initial information subconsciously, anyone can be influenced unless they make a conscious effort to seek counter-evidence.
๐งบ Where you meet it
A cognitive bias where the first piece of information acts as an anchor that skews subsequent judgmentsโwhich you can avoid only by setting your own objective baseline beforehand.