Price in the customer’s brain: anchoring, comparison and the legibility of value

Nobody knows how much a pair of glasses is "worth". The brain of the person buying them knows, and it decides in a few seconds, comparing the price with three things the practice often does not control: the first number that person saw, the alternative next to it and how clear it is to them what they are buying. A price is never judged on its own. It is judged in relation, and the relation is built by whoever sells, or left to chance.

This article continues the series on neuroscience applied to eyewear and completes, from the customer’s side, what I wrote from the practice’s side in Pricing. Three mechanisms, documented by decades of research on decisions, and one warning: they are used to make value legible, not to confuse.

Anchoring: the first number decides the others

When the brain has to judge a number, it clings to the first one it met and adjusts from there. It is the anchoring effect, described by Amos Tversky and Daniel Kahneman in the 1970s: even a random number, shown before an estimate, pulls the estimate towards itself. In the optical practice the anchor is always there, whether you decide it or not. If the first figure the person meets is a "lenses from 29 euros" sign in the window, everything that comes after will seem expensive. If the first figure is the price of the frame they chose calmly after the eye test, the progressive lenses will seem the natural consequence of a choice already made.

What the practice does. It decides what the anchor is. Not by hiding prices, but by choosing the order. First the full value of the solution for that person, then the components. First the solution that really solves the problem, then, if needed, the simpler one. Whoever starts from the lowest price "so as not to scare" has already lost: they set a low anchor and will have to climb back from there against the brain’s resistance.

Comparison: a price is understood only next to another

The brain cannot say whether 450 euros is a lot or a little. It can say whether it is more or less than something else. This is why the person facing a single proposal compares it with what they have in their head: the last pair bought, the chain’s advert, the price a colleague mentioned. The practice that presents a single option leaves the comparison to references it does not control.

What the practice does. It presents two or three options built with judgement, not a price list. Research on comparison (the decoy effect, documented by Dan Ariely and many later studies) shows that adding an intermediate option changes the choice between the other two. In the practice this translates into a simple, honest rule: the proposal the professional considers right for that person sits in the middle, with a more complete solution above and a more essential one below. The customer really chooses, and usually chooses what they need, because at last they have a yardstick.

Legibility of value: the brain pays for what it understands

The third mechanism is the least studied and the most decisive in the optical practice. Research on cognitive fluency (how easy it is to process a piece of information) shows that what is easy to understand seems truer, safer and more worthy of its price. A price attached to an object the person does not understand always seems high. The same price, attached to a benefit they recognise in their own day, seems right.

In the practice the legibility of value is lost at one precise point: when the lens is described by its technical name and not by what it does for that person. "Progressive with a wide corridor and premium anti-reflective coating" has no legible value. "You read your phone, drive at night without halos and do not have to take your glasses off to see the customer" has a value the brain measures immediately, because it compares it with its own life and not with a price list. It is the theme of Cognitive overload: too much technical information does not increase perceived value, it blocks it.

What the practice does. It translates every item of the price into a consequence in the person’s day, before saying the number. The price comes at the end, as the consequence of a value already understood, not at the beginning, as a figure to be justified.

A price is not a number. It is the relation between a number and what the brain understood before seeing it.

The warning: legibility, not manipulation

These mechanisms have been known for decades and are used everywhere, often against the customer: the fake anchor of the "crossed-out price", the decoy option built to make the expensive one look convenient, the value inflated with technical words. In the optical practice the difference between use and abuse is one: the middle proposal is really the right one for the person, the anchor is the real value of the solution and the translation of the benefit is true. Used this way, the three mechanisms do not push the customer to buy more: they help them understand what they are buying, and that is why they come back. It is the same logic as Trust and consistency: the brain chooses whoever makes it feel safe, and it feels safe when it understands.

The three mechanisms, and the way to use them honestly in the consultation, are part of the work on selling in the Academy courses in Italy and in The Charismatic Practice elsewhere; the full series is in the training for opticians area.