Which revolutionary pricing strategy, first implemented in 1917, allowed retailers to adjust prices centrally rather than having clerks individually mark each item?

Before barcodes and digital price tags revolutionized retail, pricing products was a completely different game. This poll explores a pivotal historical innovation that transformed how stores managed and displayed prices - a strategy that fundamentally changed retail economics and shopping experiences worldwide. Test your knowledge about this retail milestone that we now take for granted but was once revolutionary!

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Fixed price tags - introduced by John Wanamaker's department store
Item-level price stamping - pioneered by A&P grocery stores
Shelf pricing - introduced by Clarence Saunders' Piggly Wiggly stores
Value-based pricing - developed by F.W. Woolworth's five-and-dime stores