Which store layout strategy is specifically implemented by grocery retailers to increase unplanned purchases and is known as the 'Milk Marketing Tactic'?

The food retail industry uses numerous psychological tactics to influence customer purchasing behavior. One of the most powerful tools in their arsenal is strategic store layout and product placement. This trivia question explores a specific technique that has been proven to dramatically impact customer spending habits in grocery stores and supermarkets. Test your knowledge about the science behind food retail design!

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Placing milk and other essentials at the back of the store, forcing customers to walk through multiple aisles
Displaying complementary food items together (e.g., pasta and sauce) to encourage bundle purchases
Positioning premium food brands at eye level while placing budget options on lower shelves
Creating narrow aisles in the fresh produce section to slow down customer movement and increase browsing time