Kimberley Cornwell’s husband is on a high-protein diet, and he usually eats eggs for breakfast. So when a Safeway (SWY) shopping app offered a deal a few months ago on 18 eggs for $1.89, she took it. Cornwell had never given the store any information about her family’s health or fitness needs.
Supermarkets Offer Personalized Pricing By Olga Kharif
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