IKEA

Ingvar Kamprad had a logistics problem. He was selling furniture in rural Sweden in the 1950s and shipping costs were destroying his margins. Assembled furniture is mostly air. A wardrobe is ninety percent empty space, and you are paying to ship that emptiness across the country. So Kamprad asked a question nobody in the furniture industry had considered. What if the customer assembled it themselves? He dismantled a table, packed the pieces flat, and realised he had just solved a problem worth hundreds of billions of dollars. Flat-pack design cut shipping costs by over eighty percent. A truck that previously carried twenty assembled wardrobes could now carry two hundred flat-packed ones. But the genius was not just logistics. Kamprad had accidentally discovered a psychological principle now called the IKEA effect. People value things more when they build them. A bookshelf you assembled yourself feels more like yours than one delivered finished.