stackyFACTS
Psychology

Why “free” can beat a better deal

HERE’S THE INTERESTING PART

People will literally trample each other to grab a completely worthless plastic keychain simply because the sign says 'Free,' entirely ignoring a deeply discounted, highly useful item right next to it. The zero-price effect proves that the complete absence of cost short-circuits human logic, turning rational beings into crazed hoarders of junk.

Why “free” can beat a better deal
STACKY / Psychology
One discovery leads to another.

Keep exploring facts in this topic.

Psychology →
STACKY FOR IPHONE

A bigger world.
One discovery
at a time.

Keep discovering with Stacky. Interesting facts in an app that is always within reach.

Download on the App Store
ONE MORE DISCOVERY?

Keep exploring

All in this topic →
Why willpower fails when candy sits on your desk
Psychology

Why willpower fails when candy sits on your desk

You aggressively place a massive bowl of highly addictive candy squarely on your desk, sincerely believing your immense willpower will keep you to just one…

Discover more
Why people overestimate how many others think like them
Psychology

Why people overestimate how many others think like them

You are arrogantly obsessed with your own worldview, automatically assuming the vast majority of humanity completely agrees with your specific quirks. When…

Discover more
Humans fiercely view members of their own specific social group as vastly diverse and beautifully unique, while casually assuming everyone in opposing groups are completely…
Psychology

Humans fiercely view members of their own specific social group as vastly diverse and beautifully unique, while casually assuming everyone in opposing groups are completely…

Humans fiercely view members of their own specific social group as vastly diverse and beautifully unique, while casually assuming everyone in opposing groups…

Discover more
Why you remember the first names best
Psychology

Why you remember the first names best

If someone verbally lists twenty names, you will perfectly remember the first three and completely blank on the rest. The primacy effect ensures that initial…

Discover more
Why a 50% discount feels like fate
Psychology

Why a 50% discount feels like fate

Picture this: you walk into a store, spot a bright red ‘50% off’ tag, and suddenly it feels like fate brought you here. Why? Because your brain is wired to…

Discover more
Why are most people statistically far more terrified of dying in a shark attack than in a fatal car crash?
Psychology

Why are most people statistically far more terrified of dying in a shark attack than in a fatal car crash?

Why are most people statistically far more terrified of dying in a shark attack than in a fatal car crash?

Discover more
StackyMore discoveries in the app
Download on the App Store