Which consumer psychology principle explains why many large retailers position essential items (like milk or bread) at the back of the store?

Consumer psychology plays a crucial role in how retail spaces are designed to maximize sales. From strategic product placement to carefully selected color schemes, retailers leverage psychological principles to influence shopping behavior. This poll tests your knowledge about a specific psychological tactic used in major retail environments that has proven to increase both time spent in store and average purchase value.

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The Gruen Transfer Effect - forcing customers to navigate through the entire store increases exposure to other products
The Endowment Effect - making customers feel ownership of the shopping experience by extending their journey
The Scarcity Principle - creating the impression that essential items require more effort to obtain increases their perceived value
The Decoy Effect - using the store layout to establish a reference point that makes other purchase decisions seem more reasonable