A house move always brings a lot of emotions with it.
Some are positive, sweet, exciting.
Others are more wistful or fearful.
And yet, whatever the reason for moving house, or relocating from one office to another, something remains. And what remains is the feeling you get after spending hours poring over the instructions, tightening screws, taking apart and reassembling the same panel six times – the thrill of standing there, hands on hips, looking at the furniture you have put together. Precise, perfect. Assembled.
Nothing can match that feeling. And the reason is that the piece of furniture is now yours.
Perhaps you didn’t create it, or design it: but you put it together, you set it up. Now it’s your furniture. And that makes it special.
It’s a feeling that no other product, outside Ikea, could ever create.
Not out of sentimentality. It is neurobiology.
And someone has given this mechanism a precise name. We are talking about the IKEA effect.
The study that changed marketing
In 2012, three behavioural researchers (Michael Norton of Harvard Business School, Daniel Mochon of Tulane and Dan Ariely of Duke) published a study that was to become a benchmark in marketing and consumer psychology.
The title was direct: “The IKEA Effect: When Labor Leads to Love”.
The experiment was simple. One group of participants was asked to assemble a standard IKEA piece of furniture. Another was given the same piece already assembled. Both were then asked how much they would be willing to pay for it. The result? Those who had assembled the furniture offered 63% more than those who had received it ready-made. Yet the object was the same: identical in every respect.
The experiment was replicated with origami and Lego sets. The result was always the same: people rated their own creations (both the imperfect ones and those made by following the instructions to the letter) as if they were the work of experts.
Naturally, they expected others to see them the same way.
Norton and his colleagues identified the mechanism behind this process as effectance: the fundamental human need to produce tangible results in one’s environment.
When we complete a task successfully, the brain registers a signal of competence. And that competence transfers to the object created, raising its perceived value.
However, the effect only holds when the task is completed. As soon as participants dismantled their creations, perceived value collapsed.
The three psychological mechanisms that work together
The IKEA Effect, however, is not the product of a single cognitive process. InsideBE has summarised the research, identifying three mechanisms that work in parallel.
Effort justification. The brain needs to believe the effort was worth it. When we invest time and energy in something, we automatically raise the value we attach to that object to justify the investment retrospectively. It is a form of cognitive consistency: we cannot believe we have wasted an hour on something of little worth.
Endowment effect. Once an object is “ours” (even if only because we have handled and worked on it) the brain values it more. Ownership breeds attachment. And attachment distorts judgement.
Need for competence. Completing a task successfully activates the brain’s reward system. That feeling of having “worked out how to do it” becomes tied to the object produced, which turns into a tangible symbol of one’s own ability.
Three distinct mechanisms. One result.
Betty Crocker’s cake mix: the case that foreshadowed everything
Before Norton, Mochon and Ariely gave the phenomenon a name, the market had already learned how it worked.
In the 1950s, General Mills launched a range of fully instant Betty Crocker cake mixes: all you had to do was add water.
The product was technically flawless, but sales were a disaster. According to researchers, American housewives felt guilty baking that way. The cake was simply too easy to make.
It demanded nothing. And something that demands nothing brings no satisfaction.
The solution was counterintuitive: remove the powdered egg from the mix and ask consumers to add a fresh egg.
A minimal change, with no practical difference to the result. Yet the small act of cracking an egg and stirring it in was enough to make the cake feel like something they had made themselves.
Sales recovered.
The brands that have applied the effect most intelligently
Of course, IKEA did not invent this principle: it simply put it at the heart of its business model.
So in IKEA’s large stores you do not just receive the product to assemble: you have to find it yourself in the vast facility, navigating the shelves to locate a door here, a hinge there, and so on.
Many small actions that any other company would have automated to make things easier for the customer, but which IKEA chose to complicate instead, to trigger effectance.
Today other brands also apply similar principles.
Nike By You, for example, is Nike’s online customisation programme, letting customers choose the colours, materials and details of their shoes. It generates margins 30% higher than standard shoes, even though the customer’s physical input is minimal. In this case it is not effort that triggers the effect, but participation in the making.
Build-A-Bear is another perfect example, applied to the toy market. Customers choose the bear’s body, insert the heart and pick the clothes. In doing so, a standard soft toy becomes something that has, quite literally, been assembled with their own hands. The price goes up, but the perceived value rises even more. With attachment following close behind…
HelloFresh and meal kits are a fast-growing industry. True, you could buy the same ingredients separately, and it would cost less. But receiving the box, following the recipe and assembling the dish produce a feeling that a ready-made meal never would. Researchers confirm it: even modest effort in preparation significantly increases how much people enjoy the food.
And then there is Minecraft, perhaps the most radical example. A game built entirely on the IKEA Effect, with no story, no predefined goals, no levels to climb. Just building, and nothing else. Yet those creations (often modest compared with those of professional designers) are defended viscerally by the people who made them.
The sectors where the effect applies today
Naturally, this principle is not limited to the physical realm. There are other sectors and fields where the IKEA Effect drives appreciation and shapes perception.
The most obvious is the field of software and configurable dashboards. After all, anyone who spends time customising their interface always develops a stronger attachment to it.
Yet this principle also holds true in education and learning. Testing theoretical concepts through practice or problem-solving exercises improves memory, cognitive processes and attachment to the concepts. Experts call it learning by doing: a mechanism that stands the test of time better than traditional theoretical study.
In brand advisory and strategic advisory, too, the practice helps. When a client is involved in the building process, the outcome not only fits their needs more closely but is also better defended and more highly valued. Participation generates psychological ownership even before contractual ownership.
Starting, yes, but above all finishing
The effect described by Norton and his colleagues is triggered, as we have seen, only when the task is completed successfully. If the furniture cannot be assembled, if the cake does not rise, if the software never goes live, the result is reversed.
Not only does the effort fail to create attachment. It breeds resentment.
Not every business can rely, as Ikea does, on effectance.
Some sectors can afford it, and in others the underlying logic is different. When the principle is applied, however, brands must calibrate the process so that it is demanding enough to generate satisfaction, yet guided enough to ensure completion.
This is precisely why IKEA invests in clear instructions. Not out of kindness: simply to ensure the effect is triggered.
The line is a fine one.
But it is the difference between a customer who loves what they have built and one who never buys again.
New connections (FAQ)
Why does Ikea have its customers assemble its products?
Because physical or mental input into building something triggers an emotional valuation higher than the product’s objective value. The brain links the effort made to the competence shown: and so the object becomes proof. This mechanism, documented by Norton, Mochon and Ariely in 2012, increases willingness to pay and sharply reduces the likelihood of abandonment.
Does client involvement also work in digital services?
That is where it works best. Every moment in which users shape the tool to their own needs creates a sense of digital ownership. The more the system reflects the user’s choices, the less inclined they will be to migrate to a standard alternative.
How can the IKEA effect be used to increase brand loyalty over the long term?
By designing moments of co-creation spread over time, not concentrated solely on the initial purchase. Every time a customer contributes (perhaps by personalising, configuring, choosing), they strengthen their bond with the brand. The psychological cost of switching to a competitor is therefore not just the alternative price, but the emotional investment already made. A brand that understands this sells a relationship in which the customer has something to lose.