Why We Value What We Build
The IKEA effect isn’t just something I made up to justify moving my dressers across state lines (again and again). It’s a real, well-documented phenomenon that explains why people become more committed to things they’ve had a hand in building.
In a 2012 study, researchers Michael I. Norton, Daniel Mochon, and Dan Ariely found that participants who assembled simple IKEA furniture, origami figures, or Lego models were willing to pay up to 63% more for their creations compared to identical, pre-assembled items (Norton, Mochon, & Ariely, 2012). It turns out that when we invest effort into something, we value it more—even when the results aren’t perfect.
This effect connects to another psychological phenomenon: the endowment effect. In their famous mug study, Richard Thaler and his colleagues found that participants who were given a mug demanded significantly more money to sell it than others were willing to pay to buy it—simply because it was now “theirs” (Kahneman, Knetsch, & Thaler, 1990). Ownership changes how we perceive value, making us overestimate the worth of what we possess.
That’s why I couldn’t part with my dressers. And it’s why your team will feel more invested in a plan they help create. When people feel a sense of ownership, they’re more likely to value, defend, and stick with what they’ve built.
Experiment with This
Want to see the IKEA effect and endowment effect in action? Try this simple experiment with your team to watch how getting them involved changes their commitment:
1. Pick a Small but Important Project
Choose something visible where your team will quickly see the impact. It might be redesigning a workflow, improving meetings, or deciding how to allocate part of the budget.
2. Get Them Involved
Don’t present a fully-formed plan—invite your team to help shape it. Ask for their ideas:
- “What would make our project handoffs smoother?”
- “How do you think we could make our meetings more effective?”
Let their input guide the outcome.
3. Watch the Difference
As the project progresses, notice how their engagement shifts. Are they taking more initiative? Showing more ownership? Compare this to past projects where they weren’t involved in the decision-making.
4. Reflect Together
After a few weeks, ask your team:
- “How did being part of this process feel?”
- “Did it change how you approached the work?”
Use what you learn to refine how you involve them next time.
By running this experiment, you’ll see firsthand how involving others in creating something increases their investment in its success. When we build together, we don’t just create solutions—we create connection, commitment, and results that everyone values.
👉 Download your Lab Notebook to design your experiment and track your results: Lab Notebook: Some Assembly Required