Wis. Admin. Code ATCP § ATCP 124.01
Price comparison advertising is a form of advertising commonly used in the sale or offering for sale of consumer property or services whereby current prices are compared with former or future prices or other stated values to demonstrate price reductions or cost savings. While price comparisons accurately reflecting market values in the trade area provide consumers with useful information in making value comparisons and market buying decisions, price comparisons based on arbitrary or inflated prices or values can only serve to deceive or mislead. Further abuse occurs when sellers fail to disclose material information essential to consumer understanding of the comparisons made. The use of arbitrary or inflated price comparisons in violation of this rule as an inducement to the sale of consumer property or services is injurious to both the consuming public and competitors, and is an unfair trade practice and unfair method of competition under s. 100.20, Stats.
Wis. Admin. Code Department of Agriculture, Trade and Consumer Protection ATCP 124.01