Although there are millions of options to choose from, Americans have their preferred soda brands, with Coca-Cola, Dr. Pepper, and Pepsi being among the most popular in terms of generated revenue. Related: PepsiCo makes surprising move with irresistible snack food brand PepsiCo is an American multinational food,

A lawsuit filed by the Federal Trade Commission alleges that food and beverage maker PepsiCo engaged in illegal price discrimination by giving unfair price advantages to one big-box retailer

The Robinson-Patman Act was passed in 1936, but the federal government stopped enforcing it during the deregulation of the 1980s. The FTC resumed its enforcement in December when it sued Southern Glazer’s, the largest U.S. distributor of wine and spirits.

The FTC is suing PepsiCo for allegedly rigging the market by offering “unfair pricing advantages” that can contribute to inflation.

A lawsuit filed by the Federal Trade Commission alleges that food and beverage maker PepsiCo engaged in illegal price discrimination by giving unfair price advantages to one big-box retailer.

The commission alleges that the retailer, whose name was redacted in the statement from commissioners, received “unfair pricing advantages” that were not made available to others.

In the suit, the FTC said PepsiCo gave pricing advantages to one large chain but did not give those incentives to smaller retailers.