Definition
IKEA effect — disproportionate attachment to outcomes you assembled yourself; leaving feels like losing part of your identity.
Origin
Lab studies: participants value self-assembled products above objectively equivalent pre-built ones (Norton, Mochon & Ariely, 2012). Arkes and Blumer’s sunk-cost work shows prior investment continues to sway decisions even when only future costs and benefits should matter.
Mechanism
Effort → ownership → inflated valuation → sunk-cost lock-in. Norton et al. find the boost holds only when labor successfully completes the product — destroyed or unfinished creations do not produce the same inflation (a modest contrasting tally on boundary conditions). Arkes and Blumer document the classic sunk-cost pull independent of completion. Pairs with elevator bias (waiting so long you will not take the stairs).
Applications
Use when career pivots or closing stories need humour and meta-posture to de-dramatise sunk-cost lock-in without denying real cost — especially after incomplete projects where attachment may be weaker than it feels.
Sources
Cite
- Norton, M. I., Mochon, D., & Ariely, D. (2012). The IKEA effect: When labor leads to love. Journal of Consumer Psychology, 22(3), 453–460
- Arkes, H. R., & Blumer, C. (1985). The psychology of sunk cost. Organizational Behavior and Human Decision Processes, 35(1), 124–140.