Which retail layout innovation, first widely adopted in the 1930s, revolutionized shopping by allowing customers to select their own merchandise without clerk assistance?

Throughout history, retail store layouts have evolved dramatically to influence consumer behavior and maximize sales. From ancient marketplaces to modern experiential stores, the science of retail design has shaped shopping patterns and purchase decisions. This poll tests your knowledge about a significant innovation in retail layout history that transformed how consumers shop and interact with merchandise.

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Self-service grocery model (pioneered by Piggly Wiggly)
Department store floor plan (originated by Bon Marché)
Shopping mall concept (developed by the Southdale Center)
Boutique specialty store layout (popularized by Tiffany & Co.)