Which country first implemented a nationwide QR code payment system that revolutionized retail transactions by allowing even small street vendors to accept digital payments?

The retail landscape varies dramatically across different geographical regions, with unique payment systems emerging based on local needs and technological infrastructure. From mobile payments in developing markets to biometric authentication in tech hubs, payment innovations often reflect geographical contexts. Test your knowledge about how location-specific factors have shaped retail payment evolution around the world!

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China (with WeChat Pay and Alipay)
Sweden (with Swish)
Kenya (with M-Pesa)
India (with UPI)