Which country pioneered the world's first nationwide implementation of QR code-based mobile payment systems that revolutionized both in-store and online retail transactions?

Geography plays a crucial role in how retail technology adapts to different markets around the world. Regional preferences, cultural factors, and local infrastructure all influence how retail technologies are implemented and adopted. This trivia question explores how a major retail technology advancement has been uniquely deployed across different geographic regions, highlighting the fascinating intersection of technology, consumer behavior, and place-based strategy.

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Japan
China
Sweden
South Korea