Which ancient civilization first implemented a standardized 'fixed price' system in their marketplaces, moving away from the traditional haggling model?

Before modern retail analytics and digital price tags, ancient civilizations developed sophisticated pricing strategies for their marketplaces. These early commercial systems laid the groundwork for many pricing concepts we still use today. Test your knowledge about how ancient merchants determined value, negotiated prices, and created the first pricing strategies that would influence commerce for millennia to come.

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Ancient Romans with their 'pretium iustum' (just price) policy in urban markets
Ancient Egyptians with their state-controlled grain pricing under Pharaonic oversight
Mesopotamian merchants using the Code of Hammurabi's pricing regulations
Ancient Chinese during the Han Dynasty with their imperial price edicts