Has the Yen Topped?

The Japanese yen has been the best performing currency over the past two-and-a-half years. Since the unraveling of the subprime mortgage market and the subsequent peak in the carry trade, the yen has soared 38 percent against the U.S. dollar, 21 percent against the euro, 41 percent against the British pound and 23 percent against the well-loved high-yielder, the Australian dollar. And despite the punishment the Japanese economy has taken and despite the return of zero…