The Federal Trade Commission said Monday that it is investigating the causes behind ongoing supply chain disruptions and how they are "causing serious and ongoing hardships for consumers and harming competition in the U.S. economy." The FTC said it is ordering Walmart, Amazon, Kroger, other large wholesalers and suppliers including Procter & Gamble Co., Tyson Foods and Kraft Heinz Co. “to turn over information to help study causes of empty shelves and sky-high prices.”