CONSUMER PRICE INDEX, SHRINK- INFLATION AND YOU
Many of us are still scratching our heads when it comes to the Fed and their use of the CPI to measure inflation. Goods costing more is inevitable facet of a 2% "healthy inflation." Thanks Nixon. But what if it exceeds expectations? This would be reflected in CPI data and the Fed would act accordingly by increasing interest rates.
But what if prices stay the same... but the number of, let's say corn flakes per box or trash bags in a box, is reduced by 10%? How does this get factored into the CPI? It doesn't.
This phenomenon is known as "Shrink-flation" and has gathered new prevalence in the news cycle. While the concept is easy enough to understand: prices don't change, but weight or amount is reduced.
This is one way supplies and producers factor in the increased cost of goods without passing it on to the consumer via sticker price. While it's mostly prevalent where there is lots of individual units (pastic bags, cereals, chips, towels, tissues, etc) it's less obvious in other applications.
Here are some other ways that shrink-flation makes it into consumer goods and doesn't show up in the official CPI numbers:
However, there is also a more insidious shrink-flation in the service industry that involves your own time.
Assembly required. How much time does it take to assemble your own piece of flat-pack furniture with the pack of screws they send with unintelligible instructions? How much is your time worth? Regardless, it's free to them and they save money.