The research, plainly
Worchel's cookie-jar experiment made it concrete: identical cookies were rated more desirable from the nearly-empty jar. Cialdini catalogued the pattern everywhere — limits, deadlines, and rarity all raise perceived value and urgency.
The receipt: Worchel et al., 1975; Cialdini, 1984
What it means for events
Real limits are a feature, not an apology. Twenty-five seats at the roundtable isn't a small event — it's a scarce one. The discipline: the limit must be true. Fake scarcity, once caught, poisons every future signal you send.
Where to run it
Executive programs
Cap it, mean it, say it: 'Twenty-five seats. Eleven remain.' The number does the selling.
Registration waves
Release in genuine tranches. 'Wave one sold out' is a stronger subject line than any discount.
In-event access
The limited signing, the capacity-capped session — a queue outside a full room markets the whole event.
Seen in the wild
Related concepts
Now use it
Score your own event against principles like this one — or make the whole vocabulary official.
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