Which retail data analytics innovation first allowed food companies to track and analyze individual household purchasing patterns across multiple grocery chains?

In the age of digital transformation, food retailers have embraced sophisticated data analytics to understand consumer behavior and optimize their operations. This poll tests your knowledge about a groundbreaking innovation in retail data analytics specifically for the food industry that changed how grocery stores and food brands understand their customers' purchasing patterns and preferences.

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Nielsen Homescan Consumer Panel (now called National Consumer Panel)
IBM Food Trust blockchain system
Amazon Fresh's predictive analytics platform
Walmart's Retail Link data warehouse