[nhchris]

Can't wait until individual-level price discrimination, so that when you get a raise at work, 80% of it will be eaten by everything suddenly getting more expensive.

So far it's just digital goods, but there's no reason grocery stores won't try the same.

[brink]

They do. Haven't you ever price compared a poor neighborhood's grocery store to a rich neighborhood? Meijer does this in the Midwest. The price difference is as much as 50%.

[lotsofpulp]

Higher prices in a different grocery store could be due to many things, such as higher labor costs, property taxes, etc.

But you can see price discrimination / segmentation even in the same grocery store. The old school way was via coupons. People who had time and inclination to clip coupons spent less (excluding their time and effort) for the same item from the same store. The more modern way, via apps, can drill down into an individual's willingness to pay price X for an item versus another individual's willingness to pay price Y for the same item.

[danuker]

This could be implemented as high default prices + steep discounts for people with tracking apps/cards.

It's already happening.

Luckily they can't raise the default prices too much, cause people without apps/cards will go someplace else. But with data like face recognition, it will become more prevalent, absent personal data regulation like the EU GDPR.