Anchoring Bias: Why the First Number Hijacks Your Estimate
You know the first number is arbitrary. It still pulls your judgment. Here is how anchoring works and how to loosen its grip.
In a famous experiment, researchers spun a wheel of fortune that landed on a random number, then asked people how many African countries were in the United Nations. People who saw a higher random number gave higher estimates. They knew the wheel had nothing to do with the answer. It pulled them anyway.
That is anchoring. The first figure grabs hold of your estimate and never fully lets go, even once you know it is arbitrary.
Where it lives in your wallet
- Salary talks. The first number mentioned sets the range, which is why negotiators fight to anchor first or to refuse the other side's anchor.
- Was and now prices. A high original price makes the sale price feel like a bargain, even if the original was never real.
- Real estate list prices. A listing figure colors what buyers think the home is worth, before they have done any math.
- Car sticker prices. The MSRP sets a reference the dealer then discounts from, so the discount feels like a win.
Why knowing is not enough
Studies find that being told about anchoring reduces the effect but does not erase it. Even experts adjust insufficiently away from an anchor. Awareness helps. It does not immunize you.
The first number you hear is not harmless. Before you react to any price or offer, get your own number from the outside.
How to loosen the grip
- Gather comparables first. Check market rents, salaries, or prices before you see the asking figure, so you have your own anchor.
- Delay. A pause weakens the pull of the first number and gives your own estimate room to surface.
- Ask where their number came from. Naming an anchor as arbitrary strips some of its power.