Which retail innovation from the 1950s fundamentally changed consumer behavior by enabling marketers to track and analyze shopping patterns for the first time?

The history of retail is filled with fascinating innovations that transformed how consumers shop and how businesses understand their customers. From ancient markets to today's data-driven experiences, retail evolution provides insights into broader economic and social changes. Test your knowledge of a pivotal moment in retail history that fundamentally changed consumer behavior and set the foundation for modern marketing strategies.

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The introduction of barcodes and electronic scanners
The development of credit cards and consumer financing
The emergence of suburban shopping malls
The creation of loyalty punch cards and stamps