Why Are We All So Stupid?

Overconfidence bias is our tendency to be more confident in our abilities than is objectively justified. Do you really think your marriage will last forever? We explore the overconfidence bias by asking couples about their relationships.

Anchoring effect is our tendency to rely too much on the first piece of information. Here's how knowing about the anchoring effect could help you do things like negotiate a pay rise.

The pricing effect refers to our tendency to see price as a signal for value or quality. But it's not just a marketing ploy. Turns out, a higher price tag actually makes wine taste better - here's why.

Availability bias means believing something is more likely because it's easier to remember, either through anecdotal evidence or because we've seen something in the news. Here's how to combat this effect.

Endowment effect is our tendency to overvalue something simply because we own it. We tried to test the limits of the phenomenon by buying people's lottery tickets for much more than they paid - but would they sell?