The $9.99 Trap: Why Your Brain Can't Read a Price Tag
You see $4.99 and your brain says "four dollars." It's wrong. Every single time. And the most disturbing part is that this psychological trick is so effective that a whole country once banned it.
The $125 Decoy That Changed Nothing But Everything
The Economist offered three subscription options. Nobody picked the middle one — and that's exactly the point. How an unappealing third option secretly steers your choices.
You'll Never Understand How Hungry You'll Be — The Hot-Cold Empathy Gap That Makes You Buy Things You Don't Need
Grocery shopping on an empty stomach is a terrible idea. But it's not just hunger — your 'cold' brain can never really understand what your 'hot' brain is capable of.
Why You Finish a Bad Meal (and Other Ways Your Brain Wastes Your Money)
The sunk cost fallacy makes you eat mediocre food, stay in dead-end projects, and cling to bad investments — all because your brain can't let go of what's already gone. The classic experiments that revealed this quirk of human nature will change how you see every 'but I already paid for it' moment.