What has caused the Consumer price index to go wild since the 1970's?

Question

http://upload.wikimedia.org/wikipedia/commons/8/88/USACPI1800.svg

What key factor has contributed the most to inflation...

Well here it is

http://en.wikipedia.org/wiki/Deregulation

This is what let the Cat out of the bag and since then, the American economy has grown to the precipice of bankruptcy. Business without rules is not business but Greed gone wild. Bring back some sanity into the system and remove the Foxes out of the hen house.

Answer 1

I think that the single most detrimental thing that has cost the American people is the unbelievable free and way to easy money. IE the credit card when a person can have no income and the credit card companies issue cards to them is just   Stupid and the rest of us are paying for it now. Think about the other thing how can a family with a average income by a new up scale van $35-40,000 and have $40,000 coming in a year. Even over a 6 year period of time they can ill afford it. Your answer is just to much easy money.