IKEA Effect

What is it?

The IKEA effect, named after the furniture company whose products require self-assembly, describes the tendency to place disproportionate value on things we helped create, regardless of their objective quality. Research by Michael Norton, Daniel Mochon, and Dan Ariely showed that people valued self-assembled IKEA furniture more highly than identical pre-assembled items—and also overestimated how much others would value it. The effect requires successful completion: a half-built piece holds less appeal. Psychologically, the effect stems from feelings of competence, the desire for positive self-concept, and the effort invested creating links to value. Labor becomes love. In business, the IKEA effect creates dangerous blind spots. Leaders become attached to strategies they developed, engineers to code they wrote, designers to solutions they created—defending them past the point of reason. It contributes to "not invented here" syndrome, where external ideas are rejected in favor of inferior internal ones. Mitigating the effect requires awareness that our creations feel more valuable than they are, seeking objective feedback, establishing evaluation criteria before creation, and creating decision processes that separate creators from evaluators.