Which mathematical concept did IKEA famously implement in their store layouts to maximize product exposure, leading to a retail innovation widely adopted by mathematics-focused educational supply stores?

The intersection of mathematics and retail has led to fascinating innovations in store layout and product placement. Retailers use mathematical models to optimize everything from inventory management to store design. This trivia question focuses on a specific mathematical concept that revolutionized how certain retail chains arrange their products to maximize customer engagement and sales.

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Forced-path topology (the 'one-way maze' design)
Fibonacci sequence-based product arrangement
Golden ratio shelf positioning
Hexagonal honeycomb display configuration