Digital price labels, which are rapidly replacing paper shelf tags at US supermarkets, haven’t led to demand-based pricing surges, according to a new study that examined five years’ worth of prices at ...

IT’S SOMETHING MOST OF US LOOK AT EVERY DAY, BUT MIGHT NOT GIVE A SECOND THOUGHT TO. I’M TALKING ABOUT PRICE TAGS IN GROCERY OR DRUGSTORES. THEY’RE CALLED SHELF LABELS. AND MASSACHUSETTS IS ...