It could signal that wage and other cost pressures are easing or that sales are weakening and the economy is slowing.
Bird flu has decimated flocks. Meanwhile, demand for eggs has increased.
The University of Michigan consumer sentiment index rose 5% from November, but was still 15% lower than one year ago.
It depends on the ingredients that go into a product and how much competition it faces.
There isn't enough supply and there's too much demand.
Labor Department numbers for September show inflation slowing in some sectors.
While the overall rate of increase moderated in September, costs were still up, especially for food and services.
In some ways, falling prices would actually be bad news for the economy.
If wages were to rise as fast as prices right now, it could lead to a wage-price spiral, something the Fed is trying to prevent.
The core measure strips out food and energy prices, two of the biggest contributors to inflation today.