Which retail layout concept, originally developed for IKEA stores in Sweden, revolutionized how customers navigate through physical retail spaces and has since been adapted for different geographical markets worldwide?

In the competitive world of retail, store layout strategies have evolved dramatically based on geographical and cultural factors. Different regions have pioneered innovative approaches to maximize customer engagement and sales. This trivia question focuses on a groundbreaking store layout concept that transformed how retailers think about physical space and customer flow in specific geographical markets.

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The Gridiron Layout (straight aisles with cross-paths allowing multiple navigation routes based on regional shopping patterns)
The Forced-Path Layout (one-way maze-like journey through all departments, with culturally-adapted 'marketplace' sections)
The Free-Flow Layout (open concept with minimal barriers, designed to reflect Scandinavian openness and adapted to local preferences)
The Boutique Layout (series of shops-within-shops based on Nordic village concepts, modified for different global regions)