It looks like a coordinated offensive: on September 6, the European Central Bank outlined a new bond-buying program, letting markets know that there were no pre-set limits to its purchases. On September 13, the United States Federal Reserve announced that in the coming months it would purchase some $85 billion of long-term securities per month, with the aim of putting downward pressure on long-term interest rates and supporting growth. Finally, on September 19, the Bank of Japan declared that it was adding another ¥10 trillion ($128 billion) to its government securities purchase program, and that it expected its total holdings of such paper to reach about $1 trillion by end-2013.
Πηγή: Project Syndicate