There are many explanations why there is so much money moving around the global village. Some of them are: 1. To alleviate the economy from plummeting into a tailspin after the dotcom bubble of 2000 and 911 incident of 2001, the FED eased money supply during the ensuing years;  2.
The thrifty Asians save much of their trade surplus and continue to keep their currencies tied to a weak dollar which results in the printing of more local currencies in the process to feed their export led growth;  3.