How do supermarkets and other major retailers decide where to place product throughout their stores?

Supermarkets and major retailers use a combination of consumer behavior research, sales data analysis, and psychological principles to determine product placement within their stores. They often position high-demand items at the back to draw customers through the store, while essentials like milk and eggs are placed at the farthest points to encourage impulse purchasing along the way. Additionally, products that complement each other are strategically placed near one another to increase cross-selling opportunities. Retailers also consider seasonal trends and promotional displays to optimize visibility and sales.