Scarcity principle

The scarcity principle is a cognitive bias in which we place a higher value on things that are scarce or harder to get. What is rare automatically seems more valuable, more desirable and of higher quality to us, even though nothing has objectively changed. It works because limited availability triggers a fear of missing out on an opportunity and, at the same time, signals that other people want the thing too. Scarcity is one of the oldest and most powerful levers in business, and that is exactly why you come across it at every turn.

Classification of the cognitive bias

• Cause (Cognitive Bias Codex): The need to act fast
• Mental domain: Decision-making and emotional
• Marketing function: Scarcity
• Customer journey: Decision
• Cialdini’s principles: Scarcity
• System 1 / System 2: System 1 (fast, automatic)

In a nutshell

• What it is: the scarcer something is, the more value we place on it.
• Why we do it: scarcity signals quality and triggers the fear of missing out.
• Where you see it: “last items”, limited editions, “only while stocks last”, time-limited offers.
• How to use it: show genuine limits, whether on stock, time or places.

A real-life story

In 1975, a team led by psychologist Stephen Worchel ran a lovely experiment. They gave people biscuits from a jar to taste. One group took biscuits from a full jar of ten, the other from an almost empty jar with only two. Although the biscuits were exactly the same, people rated those from the nearly empty jar as tastier and more valuable. The biscuit did not change, its scarcity did. And when people also saw that the biscuits were running out because others were taking them too, their desire grew even further.

Robert Cialdini included scarcity among his six principles of persuasion in his 1984 book Influence. You know it from everyday life too. As soon as a flight or hotel shows “last room left at this price”, you decide faster than you had planned. You did not buy because of the room, you bought because you were afraid of losing it.

How the scarcity principle works

Scarcity works from two sides. Firstly, it is a signal of quality. We subconsciously assume that good things are in high demand, so they disappear quickly. Secondly, it plays on freedom of choice. When we are at risk of losing an option, we start to care about it more, because nobody wants to lose the freedom to decide. The principle is closely linked to loss aversion, because losing an opportunity hurts, and it is the basis of FOMO, the fear of missing out. A high price then only underlines the scarcity, which is something the Veblen effect also exploits.

Use in marketing

1. Limited stock. “Last 3 items” or “almost sold out” increases urgency. It has to be true, though, or the customer will lose trust.
2. Limited editions. Seasonal and numbered editions sell themselves precisely because they will not be repeated.
3. Time limits. Offers with an end date and a countdown give the decision a deadline. Without a deadline, people put things off.
4. Exclusivity and waiting lists. “Members only” or an invitation you have to wait for increase perceived value.
5. Scarcity of places and capacity. “5 places left for the webinar” works just like the last items in stock.

How to resist the scarcity principle

1. Check whether the limit is real. Countdowns often reset themselves once they expire. Then you can easily see through the false urgency.
2. Separate scarcity from need. Just because there is little of something does not mean you need it.
3. Take a break. Artificial pressure aims for immediate action. Put the decision off for a day.

How it interacts with other biases

Scarcity rarely works on its own. It is strongest when paired with FOMO and loss aversion. Take a typical online flight booking site. The message “last 2 seats at this price” is scarcity. The feeling that you will miss out on a good price is loss aversion. And the notice “15 people are viewing this flight right now” adds social proof. Three biases in one sentence, and that is why you book faster than you meant to. With luxury goods, scarcity is also linked to the Veblen effect, where limited availability is part of the prestige.

Frequently asked questions

What is the scarcity principle?

A cognitive bias in which we place a higher value and desirability on things that are scarce or harder to get.

How can scarcity be used in marketing?

Through genuinely limited stock, limited editions, time-limited offers and exclusivity. Always truthfully, or the customer will lose trust.

Patrik Pilous

I am a marketing strategist and SEO consultant. I love the world of marketing, the internet and AI. I am at my best when planning business growth, setting and executing marketing strategy and optimising websites (SEO, GEO and, above all, sales).