Psychology
Anchoring Bias in Price Perception
Quick fact
In a classic study, when shoppers saw a sign limiting Campbell's soup to 10 cans per person, they bought twice as many as those who saw no limit—showing how an anchor can influence quantity decisions.
Why this is interesting
Have you ever thought a $50 shirt was a bargain because it was marked down from $100? Why does the original price—which you never intended to pay—suddenly make $50 feel like a steal?
Read the full explanation
Understanding Anchoring Bias in Price Perception
Imagine you're at a store and see a jacket priced at $500. You think it's expensive. Then you spot a similar jacket for $300. That $300 now seems reasonable—even a good deal—though you might have balked at it if you'd seen it first. That's anchoring. Your brain uses the first number as a reference point, and you adjust from it, but you don't adjust nearly enough. The $500 'anchor' makes $300 appear cheaper than it actually is. In price perception, this happens all the time: the original price on a tag, the suggested retail price, even a random number can serve as an anchor. Retailers use this by showing a high 'was' price next to a lower 'now' price, making the lower price seem like a bargain even if it's still overpriced. The key is that the anchor doesn't have to be logical—any initial number can skew your judgment.
A deeper explanation
Anchoring works because of two mechanisms. First, we rely on a 'first glance' and then adjust, but our adjustments are insufficient—we don't move far enough from the initial number. Second, the anchor primes selective accessibility: we search for information consistent with the anchor, making that number seem more plausible. For example, when asked if a used car is worth $5,000, we think about reasons why it might be, and then we're more likely to see it as worth that amount. In price perception, a store's inflated sticker price 'primes' us to think in that higher range, so the sale price feels like a victory. This bias is powerful in negotiations, auctions, and everyday shopping. It matters because it can lead us to overpay—we might buy that $50 shirt for $50, but we're not really getting a deal; we're just anchored. Recognizing this lets us question our own 'gut feeling' about a price and think about what we truly value the item at, rather than what a number tells us it's worth.