That's what you'd think. But with Best Price Just For You!™ technology, you don't actually get the price on the shelf. You get the lowest listed price in the last hour. If the price is raised you Keep Your Locked In Price™. If the price is lowered you get the new better price!

IIRC one of the US grocers (stop and shop or Kroger?) actually tried that as an ad for their store card: "you do not even know how much you will pay for many products, but it will be a lower price". Needless to say this didn't run for a long time.

You mock, but I'm sure hundreds of hours have been spending crafting that corporate grocer speak!

I suspect it's really day by day, not minute by minute. They probably only update overnight.

How would they even have data to justify minute by minute?

In case you're not being facetious: the price would change overnight not during business hours.

Maybe not. Dropping the prices on the wrapped sandwiches after lunch hour would be useful to clear out the unsold inventory.

This could also be applied to baked goods, and with time, even expiring produce. It would be something to benefit both the consumer and the store!

Grocers do discount short-dated products. Look for the sticker that says "manager's special".

In my grocery store they give you 50% discount after 8pm. No need to change price labels.

How do people know?

> In case you're not being facetious: the price would change overnight not during business hours.

I'm not. Parent said "minute by minute", that's why I asked. Overnight is what I was assuming too, until I read that comment. Couldn't tell if it was a joke or serious.

They also send you an additional bill if the pride increase before you get home.

Then they compare after-market prices and if you're trending higher than forecasted: additional bills.