Comment A simple law would fix the biggest problem (Score 1) 192
Easily fixed, so long as the legislators don't try to overcook the law with too much complexity. The law should simply say, "You can have digital shelf price labels, but you can't change the price on those labels while the store is open to the public. If your store is open 24 hours a day, you can change the price between 2 a.m. and 4 a.m., but you must make a clear announcement to everyone in the store immediately before the change and every five minutes until the change is completed, in every language commonly used in your area, stating that prices are about to change and the price displayed on the shelf when you picked up the item may not be the price you will be charged at checkout."
It preserves the supposed benefits of the digital labels, and ensures that customers have pricing transparency.
I'd even allow a carve-out for goods customarily sold at "market price," so long as the list of such goods is controlled by the state and price changes are limited to when the seller's wholesale price changes and current stock is exhausted.