Index

Cognitive Biases

IKEA Effect

A cognitive bias where people place disproportionately high value on products or solutions they partially created.

The IKEA effect causes teams to over-invest in and over-defend their own creations, even when better alternatives exist.

Core question

Would I value this solution the same way if someone else had built it?

Example

An engineering team resists adopting an open-source library because they spent months building an inferior in-house version and feel attached to their work.

How to apply

  1. 1.Evaluate build-vs-buy decisions using objective criteria set before building begins.
  2. 2.Invite outside reviewers who have no ownership stake in the work.
  3. 3.Celebrate the team's capability, not the specific artifact, when sunsetting owned solutions.

Pitfalls

  • ·Demoralizing teams by dismissing their work without acknowledging effort.
  • ·Swinging to the opposite extreme and always buying instead of building.
  • ·Ignoring institutional knowledge embedded in homegrown solutions.

Questions

Where does the IKEA effect show up in organizations?

In internal tools, processes, strategies, and even branding — teams resist change because they built the current version.

How is the IKEA effect related to the endowment effect?

Both inflate perceived value of what you possess. The IKEA effect adds labor attachment on top of ownership attachment.

Related