Without getting into M1 and M2 and all that jazz, the "printing" of money by the FED is in reaction to an unprecedented shrinkage in dollars circulating after the real estate bubble burst. I don't buy into the conspiracy garbage.
The CME, NYMEX, and COMEX saw a bubble, and they don't want speculators risking the exchange's money, hence the margin increases. If you saw people using your money to do something dumb, wouldn't you want to put a stop to it? Margin increases were a signal that we little guys need to recognize and respond to.
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