text:  I think largely it reflects cost increases, including labor cost increases that grocery firms have experienced, although there may be some increases in margins," Yellen continued. Yellen claimed she met with several grocery store CEOs, including the CEO of Target, who told her they were cutting costs for items that all Americans need like bread, milk, diapers and other core purchases. I think that's to be applauded. I think that kind of thing is helpful, but I would be reluctant to agree that we should be centralizing agriculture, Yellen added.