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Using ‘scarcity’ in persuasive writing

Cialdini describes an experiment in which two groups of people were asked to rate choc-chip biscuits.

Group A took theirs from a jar containing ten biscuits.

Group B took from a jar with just two biscuits.

The result? Group B rated the biscuits higher on almost every measure – even though the biscuits were identical.

This is scarcity at work. And it’s a very useful ‘influence’ technique.

Here are some ways to use scarcity to get better results from your persuasive writing:

  • Scarce time – Imposing deadlines on your readers will motivate them to act sooner rather than later (‘later’ is probably ‘never’), e.g. ‘Offer ends 30 June’ or ‘Please do X by next Friday so [insert good reason]’.

  • Scarce amount – What you’re offering will be more attractive if it seems rare or exclusive, e.g. ‘special edition,’ ‘Limited offer’ or ‘Exclusive release.’ Be specific if you can – ‘Just five left’ trumps ‘Just a few left.’

  • Scarce information – Research shows if you limit access to a message people value it more and find it more persuasive. Can you structure your message so your readers believe it’s restricted information, e.g. ‘Exclusive members-only offer.’

  • Scarcity boosters – I’ve included three scarcity ‘boosters’ at the bottom of this post.

Seen a good example of scarcity in action? Please share it in a comment below!

Scarcity ‘boosters’

Booster 1: ‘Scarcity’ works better when people think something’s newly scarce – i.e. when it hasn’t always been in short supply, but suddenly becomes so. E.g. ‘Unprecedented demand – now just 10 seats left!’

Booster 2: ‘Scarcity’ works better again when people realise they’re competing with others for scarce resources. A common real-estate sales ploy is to tell wavering buyers that someone else is also interested in the property.

Booster 3: How you frame things can invoke ‘scarcity.’ Emphasising ‘what you could lose’ is more powerful than ‘what you could gain,’ because the former is a type of scarcity.


This is part two of a six-part series on influence and persuasion, loosely based on Dr Robert Cialdini’s work.

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