Nope, i'm on the consumer side of packaged products, but I know the difference between a package for $1.00 that contained six items a year ago, but now contains five.
You should listen to Rush Limbaugh talk about the price controls of the Nixon era.
20% loss of material with no reduction of price is ~20% inflation.
And from a business standpoint, I can say from long experience, that isn't discussed as a way of keeping up with inflation and risings costs, but as a way of shaving input costs to increase the quarterly revenues and satisfy the shareholders, who demand constant growth of those numbers. Blame capitalism. Better yet, invest in the stock of those companies.