IKEA Effect

The tendency to place disproportionately high value on products we partially created ourselves, regardless of the quality of the result.

Cognitive Biases

5 min read

experimental Evidence


IKEA Effect: Overvaluing Our Own Creations

The IKEA Effect is the tendency to place disproportionately high value on products we partially created ourselves, regardless of the quality of the result.

The Psychology Behind It

Effort justification and the need for competence drive this bias. When we invest labor into something, we need to believe it was worthwhile, so we inflate its value. The act of creation also creates emotional attachment.

Real-World Examples

1. Furniture Assembly

People value self-assembled IKEA furniture more highly than identical pre-assembled furniture, even if the assembly was frustrating.

2. Cooking

Home-cooked meals taste better to the cook than to others, even if objectively the food is average.

3. DIY Projects

Homeowners overestimate the value added by DIY renovations when selling their home.

Consequences

  • Overpricing: Sellers demand too much for handmade goods
  • Wasted Effort: Continuing bad projects because of sunk effort
  • Resistance to Help: Refusing assistance to maintain ownership

How to Mitigate It

  1. Get External Feedback: Ask others to evaluate your work objectively
  2. Compare to Alternatives: Look at professional equivalents
  3. Separate Effort from Value: Recognize that hard work doesn't always equal quality

Conclusion

The IKEA Effect reminds us that our labor biases our judgment. What we build, we love - sometimes too much.


Related Biases

Explore these related cognitive biases to deepen your understanding

Loaded Language

Loaded language (also known as loaded terms or emotive language) is rhetoric used to influence an audience by using words and phrases with strong connotations.

Cognitive Biases

/ Emotive language

Euphemism

A euphemism is a mild or indirect word or expression substituted for one considered to be too harsh or blunt when referring to something unpleasant or embarrassing.

Cognitive Biases

/ Doublespeak (related)

Paradox of Choice

10 min read

The paradox of choice is the idea that having too many options can make decisions harder, reduce satisfaction, and even lead to decision paralysis.

Cognitive Biases / Choice and complexity

/ Choice Overload

Choice Overload Effect

10 min read

The choice overload effect occurs when having too many options makes it harder to decide, reduces satisfaction, or leads people to avoid choosing at all.

Cognitive Biases / Choice and complexity

/ Paradox of Choice

Procrastination

2 min read

Procrastination is the action of unnecessarily and voluntarily delaying or postponing something despite knowing that there will be negative consequences for doing so.

Cognitive Biases

/ Akrasia (weakness of will)

Time-Saving Bias

2 min read

The time-saving bias describes the tendency of people to misestimate the time that could be saved (or lost) when increasing (or decreasing) speed.

Cognitive Biases

/ Time-saving illusion