In the past few years, central banks around the world have pumped trillions of dollars into the financial system, partly motivated by the desire to keep their currencies weak in relation to others.
Dec 18- The U.S. dollar had a strong year against the yen in 2012, but dropped against the euro and other major currencies. The best-performing major currency against the U.S. dollar was the New Zealand dollar, which gained 6.3 percent, the largest annual gain since 2010..
As central banks in both the U.S. and Japan look set to continue aggressive monetary easing policies in 2013, Dan Harden, senior commercial dealer at Global Reach Partners has told CNBC traders should short both countries' currencies and look for high yields from the Australian and New Zealand dollar.