Behavioral Hack
Put the word “limited,” “only today,” or “last 3 portions” next to an item — and watch it sell. Scarcity bias makes the brain go into FOMO mode, triggering faster decisions and higher desire, especially if there’s some uncertainty built in.
Real-World Example:
In 2019, McDonald’s launched its “Truffle Mayo Fries — Limited Time Only” in Europe. The result? A 38% spike in side order revenue that month in test regions. Turns out, people will trample their morals for limited mayo.
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