Endowment Effect

QUOTE

Daniel Kahneman once said…

“The pain of losing something is twice as powerful as the pleasure of gaining it.”

(Israeli-American psychologist)

CONCEPT

Endowment Effect

The Endowment Effect is the psychological tendency to overvalue things simply because you own them.

The moment something becomes yours, it becomes worth more to you than it would be to anyone else, including what you paid for it.

It helps explain why people hold losing stocks too long, why negotiations stall over trivial items, and why cleaning out a closet feels so oddly emotional.

STORY

Mugged … by Our Own Minds?

In the spring of 1990, a Cornell University economist named Jack Knetsch walked into a classroom and divided his students into three groups.

One group received a coffee mug. One group received a chocolate bar. One group received nothing and was simply asked to choose between the two.

The results were … strange.

Among students who had been given a mug, roughly 89% chose to keep it rather than trade for the chocolate. Among students given chocolate, roughly 90% kept the chocolate rather than trade for the mug. Among students given nothing and asked to simply choose, the split was nearly even—56% chose the mug, 44% the chocolate.

The objects hadn't changed, ownership just distorted their value.