Kroger, the largest supermarket chain in the United States, is currently under investigation for using electronic price labels in its stores nationwide.
US Senators Elizabeth Warren and Bob Casey have announced they are investigating Kroger's practices to determine whether the company is engaging in surge pricing. Dynamic pricing—also referred to as surge pricing, demand pricing, time-based pricing, and variable pricing—is a common practice in industries such as airlines, hotels, and ride-sharing services like Uber.
