This is not a political answer, it's a financial answer. It's because we have a fiat currency. A quick explanation, to me anyway is that when you print money into the system the other money becomes worth less. It matters not as long as the rate of this inflation is matched by EVERYONES wages increasing at the same rate. That is where the problem comes in and we come out on the short end. GS isn't just sitting back and increasing their price for no reason and the grocery store isn't either. They are passing on their having their pockets picked by the central bankers. NO, the federal reserve is not truly our government/our bank, it is controlled by the central bankers. Federal reserve act of 1913. Read the book "Creature from Jekyl island" by G Edward Griffin.
Fiat Currency